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C1 noun #29 よく出る 12分で読める

monomers

上位29

練習する例文メモとヒント monomers 30秒で

解説 monomers in your Level:

Monomers are like small Lego bricks. Imagine you have a big box of red Lego bricks. Each single brick is a monomer. When you put many bricks together to make a long line or a tall tower, that tower is called a polymer. In the real world, everything is made of tiny pieces. Monomers are the tiny pieces that make up bigger things like plastic or the food we eat. For example, sugar is a monomer. When many sugar pieces join together, they make things like bread or pasta. So, just remember: one small piece is a monomer, and a big chain of pieces is a polymer. It is like one bead on a string. The bead is the monomer. The whole necklace is the polymer. Scientists use this word to talk about how things are built. Even though the word 'monomers' sounds difficult, it just means 'one part.' If you can build a train with many small cars, each car is a monomer. This helps us understand how small things become big things. We use monomers to make plastic bottles, toys, and even our own bodies. Your body uses monomers to grow and stay healthy. When you eat food, your body breaks it down into these small monomers so it can use them to build new parts of you. It is like taking a Lego tower apart so you can build something new. Monomers are very important because without them, we could not have big, strong structures. They are the starting point for almost everything we see and touch.

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Monomers are the basic units used to build larger molecules. The word comes from 'mono,' which means 'one,' and 'mer,' which means 'part.' So, a monomer is 'one part' of a bigger structure. Think of a train. Each individual carriage is a monomer. When you hook them all together, you get a long train, which scientists call a polymer. In science, we see monomers everywhere. For example, in our food, there are small molecules called amino acids. These are the monomers that build proteins in our muscles. Another example is glucose, which is a simple sugar monomer. When many glucose monomers join together, they form starch, which we find in potatoes and rice. In the world of materials, monomers are used to make plastics. Ethylene is a very common monomer used to make plastic bags. When we talk about monomers, we are usually talking about chemistry or biology. It is a useful word to know because it explains how nature and factories create complex materials from simple ingredients. You can think of monomers as the 'ingredients' and the polymer as the 'finished cake.' However, in chemistry, the ingredients actually stick together to become one long piece. If you want to make something strong, you need the right kind of monomers. Some monomers make soft things, like rubber, and some make hard things, like the plastic in a computer. By learning about monomers, you are learning about the secret building blocks of the world.

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Monomers are small, simple molecules that can join together to form much larger, complex molecules called polymers. This process of joining is known as polymerization. You can visualize monomers as individual links in a chain. Each link is a separate unit, but they have the ability to bond with other links to create a long, continuous structure. In chemistry, monomers are essential because they are the starting materials for many synthetic products we use every day, such as plastics, synthetic rubbers, and fibers like nylon or polyester. For instance, the plastic used in water bottles is made by linking together thousands of ethylene monomers. In biology, monomers are equally important. Life depends on four main types of macromolecules: proteins, carbohydrates, lipids, and nucleic acids. Each of these is made from specific monomers. Amino acids are the monomers for proteins, while simple sugars (monosaccharides) are the monomers for complex carbohydrates like cellulose. Nucleotides are the monomers that make up DNA and RNA. When you digest food, your body uses enzymes to break down large polymers into their constituent monomers. These monomers are then absorbed into your bloodstream and transported to cells, where they are used as energy or rebuilt into new polymers that your body needs. Understanding monomers helps you understand how chemical reactions can create diverse materials with different properties. The type of monomer used, and how they are arranged, determines whether the final product will be flexible, rigid, transparent, or heat-resistant. It is a fundamental concept in both organic chemistry and molecular biology.

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In the field of chemistry and materials science, monomers are defined as relatively small molecules that possess the chemical capacity to react with other molecules of the same or different type to form a polymer. The defining characteristic of a monomer is its 'functionality,' which refers to the number of reactive sites it has. For a molecule to act as a monomer and form a long chain, it must have at least two reactive sites. If a monomer has more than two sites, it can create branched or cross-linked structures, which often results in harder and more durable materials like epoxy resins. The transition from monomers to polymers involves various types of chemical reactions, such as addition polymerization or condensation polymerization. In addition polymerization, monomers simply add onto each other without losing any atoms. In condensation polymerization, a small molecule, often water or methanol, is released as a byproduct when the monomers bond. This is how many natural polymers, like silk and DNA, are formed. From an industrial perspective, the production of monomers is a massive global business. Most synthetic monomers are derived from petroleum or natural gas through a process called 'cracking.' These monomers are then used to manufacture a staggering array of products, from medical devices to aerospace components. Environmental science also focuses heavily on monomers, particularly regarding the 'residual monomers' that might remain in a plastic product after manufacturing. Some of these can be toxic or act as endocrine disruptors if they leach out. Therefore, the study of monomers is not just about building things; it's also about understanding the safety and lifecycle of the materials that surround us in modern society.

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Monomers represent the foundational molecular units in the synthesis of macromolecules, characterized by their ability to undergo a process of repetitive bonding to yield high-molecular-weight polymers. At the C1 level, it is essential to understand that the physical and chemical properties of a polymer are intrinsically linked to the specific architecture and chemical nature of its constituent monomers. For example, the presence of polar functional groups in a monomer can lead to strong intermolecular forces, such as hydrogen bonding, which significantly increases the melting point and tensile strength of the resulting polymer, as seen in polyamides like Kevlar. Furthermore, the concept of 'copolymerization' involves the use of two or more different types of monomers to tailor the properties of a material. By adjusting the ratio and sequence of these monomers—whether they are arranged randomly, in alternating patterns, or in blocks—scientists can engineer materials with precise characteristics, such as increased elasticity or enhanced chemical resistance. In biological systems, the sequence of monomers is of paramount importance. The primary structure of a protein is defined by the specific linear sequence of amino acid monomers, which is dictated by the sequence of nucleotide monomers in the corresponding gene. Any error in this monomeric sequence can lead to protein misfolding and various genetic diseases. Additionally, the thermodynamics of monomer-polymer equilibrium is a critical area of study; for every polymerization reaction, there is a 'ceiling temperature' above which the polymer will spontaneously depolymerize back into its constituent monomers. This principle is increasingly relevant in the development of 'circular' plastics designed for chemical recycling, where polymers are intentionally broken down into pure monomers to be reused indefinitely, offering a sustainable alternative to traditional mechanical recycling.

At the highest level of scientific discourse, monomers are viewed as the discrete kinetic and thermodynamic units whose collective behavior governs the emergent properties of complex macromolecular systems. The study of monomers transcends simple chain formation, delving into the nuances of molecular geometry, electronic distribution, and reactivity ratios. In radical polymerization, for instance, the reactivity of a monomer is influenced by the stability of the resulting radical intermediate, which is determined by resonance and inductive effects. The 'Q-e scheme' is a semi-quantitative tool used by chemists to predict how different monomers will behave during copolymerization based on their resonance and polarity. Furthermore, the synthesis of 'functional monomers'—those carrying specific side groups like catalysts, fluorophores, or ligands—allows for the creation of 'smart' materials that respond to external stimuli such as pH, temperature, or light. In the realm of supramolecular chemistry, the concept of a monomer expands to include non-covalent building blocks that self-assemble into highly ordered structures through hydrogen bonding, pi-pi stacking, or hydrophobic interactions. These 'supramolecular monomers' allow for the creation of reversible, self-healing materials that mimic biological tissues. From a philosophical and systems-theory perspective, monomers can be seen as the 'information carriers' of the material world. In DNA, the four nucleotide monomers represent a quaternary code that stores the complexity of life. The transition from a disordered pool of monomers to an ordered polymer is a profound example of entropy reduction driven by chemical energy. Current research in 'sequence-defined polymers' aims to achieve the same level of precision found in nature, where every monomer is placed in an exact, pre-determined position to create synthetic molecules with enzyme-like functions. Consequently, the mastery of monomeric manipulation is the key to the next generation of nanotechnology, drug delivery systems, and sustainable materials science, representing the pinnacle of human control over matter at the molecular scale.

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練習する例文メモとヒント

monomers 30秒で

Monomers are the fundamental building blocks that link together to form large molecules called polymers.
They are essential in both biology (like amino acids in proteins) and industry (like ethylene in plastics).
A molecule must have at least two bonding sites to be considered a functional monomer in a chain.
The process of joining monomers is called polymerization, which can be natural or synthetic.

In the vast and intricate world of chemistry and molecular biology, the term monomers refers to the fundamental building blocks that constitute larger, more complex structures known as polymers. Derived from the Greek words 'mono' (meaning one) and 'meros' (meaning part), a monomer is a relatively small molecule that can undergo polymerization, a chemical process where it bonds with other identical or similar molecules to form a long, repeating chain. Imagine a single link in a heavy iron chain or a individual brick in a massive wall; in these analogies, the single link or brick represents the monomer, while the entire chain or wall represents the polymer. This concept is central to understanding both the natural world and modern industrial technology. In nature, monomers are the precursors to the essential macromolecules of life. For instance, amino acids are the monomers that link together via peptide bonds to create proteins, which perform nearly every functional task within a living cell. Similarly, nucleotides are the monomers that assemble into the double helix of DNA, carrying the genetic blueprint for all known organisms. In the industrial sector, the manipulation of synthetic monomers has revolutionized human existence. Ethylene, a simple monomer, is polymerized to create polyethylene, the most common plastic in the world, used for everything from grocery bags to bulletproof vests. The versatility of monomers lies in their functional groups—specific arrangements of atoms that determine how they can bond. Some monomers have two bonding sites, allowing them to form linear chains, while others have three or more, leading to complex, cross-linked three-dimensional networks. Scientists and engineers use the term 'monomers' when discussing the synthesis of new materials, the degradation of plastics, or the biochemical pathways of metabolism. When a polymer breaks down, it often reverts to its constituent monomers, a process crucial for recycling and digestion.

Chemical Definition: A molecule of low molecular weight capable of reacting with others to form a polymer.

The scientist analyzed how the individual monomers reacted under high pressure to form a resilient new plastic.

Biological Context: In biology, monomers like glucose are essential for energy storage when they form polymers like starch or glycogen.

Without the correct sequence of monomers, the resulting protein cannot fold into its functional shape.

Industrial production of nylon requires the careful measurement of specific diamine and carboxylic acid monomers.

Environmentalists are concerned that microplastics eventually break down into harmful monomers that can enter the food chain.

The research paper detailed the synthesis of fluorinated monomers for use in high-performance coatings.

Etymological Root: The word combines 'mono' (single) and 'mer' (part), emphasizing its role as a singular unit of a larger whole.

Using the word monomers correctly requires an understanding of its plural nature and its specific scientific context. It is almost always used in discussions regarding chemistry, biology, materials science, or environmental studies. Because it is a count noun, you will often see it preceded by adjectives like 'synthetic,' 'natural,' 'identical,' or 'bifunctional.' When writing about the formation of materials, you might say, 'The monomers were polymerized under vacuum,' which indicates the process of joining them. In a biological context, you might describe how 'the digestive system breaks down complex carbohydrates into simple sugar monomers like glucose.' It is important to distinguish between the monomer (the unit) and the polymer (the chain). For example, you wouldn't say 'the plastic is a monomer'; rather, you would say 'the plastic is made of monomers.' In academic writing, 'monomers' often serves as the subject of verbs like 'link,' 'bond,' 'assemble,' 'react,' or 'dissociate.' It can also be used as a modifier in compound nouns like 'monomer concentration' or 'monomer sequence.' Precision is key: if you are talking about a specific type, name it, such as 'styrene monomers' or 'vinyl chloride monomers.' In professional settings, such as a chemical manufacturing plant, the word is used to describe raw materials. A procurement officer might order 'ten tons of liquid monomers' for the production line. In environmental science, the focus might be on 'residual monomers'—unreacted units that remain in a finished plastic product and might leach out over time. Understanding the relationship between monomers and their resulting polymers allows for a more nuanced description of material properties. For instance, 'the orientation of the monomers during the reaction determines the crystallinity of the polymer.'

Syntactic Role: Commonly used as a plural count noun in the subject or object position of a sentence.

To create a strong adhesive, we must ensure the monomers are completely purified before the reaction begins.

Common Adjectives: Reactive, bifunctional, unsaturated, organic, and residual.

The sequence of monomers in a DNA strand acts as a code for building proteins.

Many modern textiles are synthesized from petroleum-derived monomers.

The lab technician added a catalyst to trigger the bonding of the monomers.

By altering the ratio of different monomers, engineers can create copolymers with unique properties.

Action Verbs: Polymerize, link, cross-link, react, and degrade.

While monomers might sound like a word reserved for dusty textbooks, it is frequently heard in various professional and academic spheres. If you are a student in a high school or university chemistry lab, you will hear your instructor talk about 'monomer conversion' or 'addition polymerization.' In the medical field, orthopedic surgeons and dentists use 'monomers' when discussing the resins used for bone cement or dental fillings. They might mention the importance of 'low monomer toxicity' to ensure patient safety. In the corporate world, particularly within the chemical, textile, and packaging industries, 'monomers' is a staple of the vocabulary. Executives at companies like BASF or Dow Chemical discuss 'monomer pricing' and 'supply chain logistics for raw monomers' as these are the primary inputs for their plastic products. Environmental activists and policy makers use the term when debating the safety of food packaging. You might hear a news report about 'bisphenol A (BPA) monomers' leaching from plastic bottles into drinking water, sparking public health concerns. In the burgeoning field of 3D printing, enthusiasts and engineers discuss the 'monomer composition' of UV-curable resins, which determines the speed and detail of the print. Even in the beauty industry, particularly in nail salons, the liquid used to create acrylic nails is technically a 'monomer liquid' that reacts with a polymer powder to harden. Therefore, whether you are in a research facility, a manufacturing plant, a hospital, or even a nail salon, the word 'monomers' is used to describe the essential starting materials for the complex substances that define our modern world. It is a word that bridges the gap between theoretical molecular science and tangible, everyday products.

Professional Domains: Chemical engineering, molecular biology, dentistry, and material science.

During the lecture on genetics, the professor explained how nucleotide monomers pair up to form the rungs of the DNA ladder.

Industrial Usage: Used to describe the raw feedstock for plastic and synthetic fiber production.

The company's quarterly report cited rising costs of petroleum-based monomers as a reason for lower profit margins.

Dentists must ensure that the monomers in dental resins are fully cured to prevent irritation to the gums.

The environmental study focused on the presence of unreacted monomers in plastic toys designed for infants.

In the 3D printing community, users often experiment with different monomers to achieve better flexibility in their prints.

Academic Context: Found in textbooks, research papers, and scientific journals discussing macromolecular synthesis.

One of the most frequent errors when using the word monomers is confusing it with its counterpart, 'polymers.' While they are inextricably linked, they represent opposite ends of the molecular scale. A monomer is the single unit, while a polymer is the large chain made of many units. Using 'monomer' to describe a finished plastic object is incorrect; the object is the polymer. Another common mistake is failing to recognize that 'monomers' is a general category, not a specific substance. Just as 'fruit' can mean an apple or an orange, 'monomers' can mean glucose, amino acids, or ethylene. In technical writing, students often forget that for a molecule to be a monomer, it must have at least two functional groups (bonding sites) to form a chain. If it only has one, it's just a molecule that terminates a chain. There is also confusion between 'monomers' and 'atoms.' While monomers are made of atoms, a monomer is a complete molecule in its own right. For example, a water molecule is an atom-based structure, but it is not typically considered a monomer because it doesn't polymerize into long chains in the same way organic molecules do. In biological contexts, people sometimes confuse 'monomers' with 'isomers.' Isomers are molecules with the same formula but different structures, whereas monomers are the building blocks for larger chains. Furthermore, the pronunciation can sometimes be tricky for non-native speakers, who might place the stress on the wrong syllable; the primary stress is on the first syllable: MON-o-mers. Finally, in environmental discussions, people often use 'monomers' and 'microplastics' interchangeably. This is inaccurate. Microplastics are small physical fragments of a polymer, while monomers are the individual chemical units that were originally used to make that polymer. Understanding these distinctions is crucial for scientific literacy and clear communication.

Monomer vs. Polymer: The monomer is the 'bead'; the polymer is the 'necklace.' Never call the necklace a bead.

Incorrect: 'This plastic bottle is a monomer.' Correct: 'This plastic bottle is a polymer made from monomers.'

Functional Requirement: A molecule must be able to bond with at least two others to be considered a monomer in a chain.

Confusion often arises when students call individual atoms monomers, forgetting that monomers are multi-atom molecules.

In the lab, mistaking one type of monomer for another can lead to a failed polymerization reaction.

The term monomers should not be used when referring to simple salts, as they form ionic lattices, not covalent polymers.

Avoid saying 'monomer units' repeatedly; 'monomers' or 'repeating units' is more concise and professional.

Biological Nuance: While all amino acids are monomers, not all monomers are amino acids.

When discussing the concept of monomers, several related terms can provide more specific meaning or serve as useful synonyms depending on the context. The most common informal alternative is 'building blocks.' This phrase is widely used in educational settings to explain how small units create large structures. In a more technical sense, 'subunits' is often used in biology to describe the individual components of a protein or a ribosome. Another related term is 'precursors,' which refers to the starting materials in a chemical reaction that eventually become part of the final product. While all monomers are precursors, not all precursors are monomers. In polymer science, the term 'repeating unit' is often used interchangeably with monomer, although technically, the repeating unit is the part of the polymer chain that comes from the monomer (sometimes a small molecule like water is lost during the reaction, so the repeating unit is slightly different from the original monomer). 'Dimer,' 'trimer,' and 'oligomer' are terms used to describe chains made of two, three, or a few monomers, respectively. If you are looking for a more general term in chemistry, 'reactant' or 'reagent' might work, but these lack the specific connotation of being a part of a chain. In the context of DNA, 'nucleotides' is the specific name for the monomers. In proteins, it's 'amino acids.' In carbohydrates, it's 'monosaccharides.' Using these specific terms is often preferred in scientific writing to demonstrate a deeper understanding of the subject. For example, instead of saying 'the monomers of starch,' a scientist would say 'the glucose units.' Understanding these alternatives allows you to tailor your language to your audience, whether you are explaining basic concepts to a child or presenting a technical paper to experts.

Comparison: Monomer vs. Subunit: 'Monomer' is a chemical term; 'subunit' is often used in structural biology for larger protein complexes.

Instead of just calling them monomers, the biologist referred to the amino acids as the essential building blocks of the enzyme.

Specific Alternatives: Monosaccharides (for sugars), Nucleotides (for DNA), Amino acids (for proteins).

The term 'repeating unit' is often used in engineering to describe the chemical structure derived from the monomers.

In the synthesis of nylon, the two different monomers are often called co-monomers.

Oligomers represent an intermediate stage where only a few monomers have joined together.

The word 'reactant' is a broader term that includes monomers but also catalysts and solvents.

Contextual Synonyms: Constituent units, base units, primary molecules, and structural components.

How Formal Is It?

フォーマル

ニュートラル

カジュアル

Child friendly

スラング

豆知識

The term was popularized by Hermann Staudinger, the father of polymer chemistry, who won the Nobel Prize for proving that polymers were long chains of molecules rather than just clusters.

発音ガイド

UK /ˈmɒn.ə.məz/

US /ˈmɑː.nə.mɚz/

Primary stress is on the first syllable: MON-o-mers.

韻が合う語

astronomers economers gastronomers honorers conquerors wanderers ponderers squanderers

よくある間違い

Stressing the second syllable (mo-NOM-ers).
Pronouncing the 'o' as a long 'O' (mo-no-mers).
Confusing it with 'monomers' (singular) when multiple are present.
Mumbling the 'mer' sound.
Adding an extra syllable.

難易度

読解 4/5

Requires basic scientific literacy to understand the context.

ライティング 5/5

Spelling is straightforward, but technical usage requires precision.

スピーキング 5/5

Pronunciation is often mangled by non-experts.

リスニング 4/5

Clear scientific term, but can be confused with 'polymers' in fast speech.

次に学ぶべきこと

前提知識

molecule atom bond chain unit

次に学ぶ

polymer polymerization macromolecule covalent catalyst

上級

stoichiometry tacticity enthalpy copolymerization oligomerization

知っておくべき文法

Pluralization of technical nouns

Monomer becomes monomers.

Count vs. Non-count

You can have 'three monomers' (count), but you have 'some plastic' (non-count).

Adjective placement

Always use 'synthetic monomers', not 'monomers synthetic'.

Prepositional usage

Monomers 'of' a substance; monomers 'into' a chain.

Subject-Verb Agreement

The monomers 'are' (plural) reacting.

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レベル別の例文

The small parts are called monomers.

Les petites parties s'appellent des monomères.

Plural noun used as a complement.

One monomer joins another monomer.

Un monomère rejoint un autre monomère.

Singular count noun.

Monomers make big chains.

Les monomères forment de grandes chaînes.

Subject of the sentence.

Is sugar a monomer?

Le sucre est-il un monomère ?

Interrogative sentence.

These monomers are identical.

Ces monomères sont identiques.

Demonstrative adjective 'these' with plural noun.

We use monomers for plastic.

Nous utilisons des monomères pour le plastique.

Prepositional object.

Look at the small monomers.

Regardez les petits monomères.

Imperative sentence.

The monomers are like beads.

Les monomères sont comme des perles.

Simile using 'like'.

Amino acids are the monomers of proteins.

Les acides aminés sont les monomères des protéines.

Genitive 'of' construction.

Monomers are the building blocks of life.

Les monomères sont les blocs de construction de la vie.

Metaphorical usage.

The factory produces liquid monomers.

L'usine produit des monomères liquides.

Noun modified by an adjective.

How do monomers stick together?

Comment les monomères collent-ils ensemble ?

Adverbial question.

Each polymer contains many monomers.

Chaque polymère contient de nombreux monomères.

Quantifier 'many' with plural noun.

Scientists study different types of monomers.

Les scientifiques étudient différents types de monomères.

Direct object.

Heat can help monomers react.

La chaleur peut aider les monomères à réagir.

Infinitive phrase.

The monomers form a strong bond.

Les monomères forment un lien solide.

Definite article 'the'.

Ethylene monomers are used to create polyethylene bags.

Les monomères d'éthylène sont utilisés pour créer des sacs en polyéthylène.

Passive voice.

During digestion, enzymes break polymers into monomers.

Pendant la digestion, les enzymes décomposent les polymères en monomères.

Prepositional phrase 'into'.

Vinyl chloride is one of the most common monomers.

Le chlorure de vinyle est l'un des monomères les plus courants.

Superlative construction.

The properties of the plastic depend on its monomers.

Les propriétés du plastique dépendent de ses monomères.

Possessive adjective 'its'.

We need to purify the monomers before the reaction.

Nous devons purifier les monomères avant la réaction.

Modal verb 'need to'.

Monomers are usually small organic molecules.

Les monomères sont généralement de petites molécules organiques.

Adverb 'usually' modifying the verb.

If we change the monomers, the material changes.

Si nous changeons les monomères, le matériau change.

First conditional.

The sequence of monomers in DNA is unique.

La séquence des monomères dans l'ADN est unique.

Subject-verb agreement with 'sequence'.

Bifunctional monomers are required to form linear polymer chains.

Des monomères bifonctionnels sont nécessaires pour former des chaînes polymères linéaires.

Technical adjective 'bifunctional'.

Residual monomers in the product can cause health issues.

Les monomères résiduels dans le produit peuvent causer des problèmes de santé.

Noun phrase as subject.

The polymerization process links monomers via covalent bonds.

Le processus de polymérisation lie les monomères via des liaisons covalentes.

Active voice with technical verb 'links'.

Synthetic monomers are primarily derived from crude oil.

Les monomères synthétiques sont principalement dérivés du pétrole brut.

Adverb 'primarily' modifying the participle.

Copolymers are made by mixing two different monomers.

Les copolymères sont fabriqués en mélangeant deux monomères différents.

Gerund 'mixing' after a preposition.

The reactivity of monomers varies significantly under pressure.

La réactivité des monomères varie considérablement sous pression.

Verb 'varies' with adverb 'significantly'.

Researchers are developing bio-based monomers from corn.

Des chercheurs développent des monomères biosourcés à partir de maïs.

Present continuous tense.

The conversion of monomers to polymers is an exothermic reaction.

La conversion des monomères en polymères est une réaction exothermique.

Noun phrase 'conversion of... to...'.

The stoichiometric ratio of the monomers must be precisely controlled.

Le rapport stœchiométrique des monomères doit être contrôlé avec précision.

Advanced technical adjective 'stoichiometric'.

Unsaturated monomers are prone to addition polymerization.

Les monomères insaturés sont sujets à la polymérisation par addition.

Adjective phrase 'prone to'.

The orientation of monomers determines the polymer's tacticity.

L'orientation des monomères détermine la tacticité du polymère.

Possessive 'polymer's'.

Free radical initiators trigger the bonding of these monomers.

Des initiateurs de radicaux libres déclenchent la liaison de ces monomères.

Technical subject 'Free radical initiators'.

The ceiling temperature is where monomers and polymers reach equilibrium.

La température de plafond est l'endroit où les monomères et les polymères atteignent l'équilibre.

Relative clause 'where'.

Fluorinated monomers provide exceptional thermal stability to the resin.

Les monomères fluorés confèrent une stabilité thermique exceptionnelle à la résine.

Direct and indirect object structure.

Biodegradable polymers eventually break down into harmless monomers.

Les polymères biodégradables finissent par se décomposer en monomères inoffensifs.

Adverb 'eventually' indicating a process.

The molecular weight of the polymer depends on the monomer concentration.

Le poids moléculaire du polymère dépend de la concentration en monomère.

Compound noun 'monomer concentration'.

The stochastic nature of monomer addition dictates the polydispersity index.

La nature stochastique de l'ajout de monomères dicte l'indice de polydispersité.

Highly technical vocabulary.

Monomers with high resonance energy exhibit lower reactivity in radical systems.

Les monomères ayant une énergie de résonance élevée présentent une réactivité plus faible dans les systèmes radicalaires.

Complex subject with prepositional phrase.

Living polymerization allows for the sequential addition of different monomers.

La polymérisation vivante permet l'ajout séquentiel de différents monomères.

Gerund phrase as subject.

The steric hindrance of the monomer's side groups affects the reaction rate.

L'encombrement stérique des groupes latéraux du monomère affecte la vitesse de réaction.

Double possessive 'monomer's side groups'.

Supramolecular monomers assemble via reversible non-covalent interactions.

Les monomères supramoléculaires s'assemblent via des interactions non covalentes réversibles.

Scientific terminology 'supramolecular'.

The synthesis of sequence-defined monomers mimics biological precision.

La synthèse de monomères à séquence définie imite la précision biologique.

Hyphenated compound adjective.

Monomer depletion was monitored using real-time NMR spectroscopy.

L'épuisement des monomères a été surveillé par spectroscopie RMN en temps réel.

Passive voice with past participle.

Chiral monomers can lead to the formation of optically active polymers.

Les monomères chiraux peuvent conduire à la formation de polymères optiquement actifs.

Modal 'can' expressing possibility.

よく使う組み合わせ

synthetic monomers

monomer sequence

residual monomers

monomer concentration

bifunctional monomers

liquid monomers

monomer units

reactive monomers

monomer conversion

purified monomers

よく使うフレーズ

link monomers

— The act of chemically bonding the units together.

Enzymes link monomers to build the cell wall.

break down into monomers

— The process of a polymer decomposing into its parts.

Bacteria can break down some plastics into monomers.

monomer-to-polymer

— Describing the transition or ratio between the two states.

The monomer-to-polymer ratio affects the final density.

free monomers

— Units that are not yet bonded in a chain.

The solution contains a high amount of free monomers.

starting monomers

— The initial materials used at the beginning of a process.

The starting monomers were cooled to room temperature.

identical monomers

— When all units in a polymer are the same.

Homopolymers are made from identical monomers.

monomer addition

— The step-by-step process of adding units to a chain.

Monomer addition must be carefully timed.

excess monomers

— More units than are needed for the reaction.

The excess monomers were washed away after the process.

monomer feed

— The supply of units into a continuous manufacturing process.

The monomer feed was interrupted by a power failure.

natural monomers

— Units found in nature, like glucose or amino acids.

The lab is exploring ways to use natural monomers for eco-friendly materials.

よく混同される語

monomers vs polymers

A polymer is the large chain; a monomer is the single unit.

monomers vs isomers

Isomers have the same formula but different shapes; monomers are building blocks.

monomers vs monocles

A monocle is an eyeglass; a monomer is a molecule.

慣用句と表現

"building blocks of life"

— A common metaphorical way to refer to monomers like DNA and proteins.

Scientists are searching for the building blocks of life on Mars.

popular science

"the sum of its parts"

— Often used to describe how a polymer is more than just a collection of monomers.

A polymer's strength shows it is more than just the sum of its monomers.

general

"link in the chain"

— Metaphorically referring to a single monomer's role in a larger structure.

Each monomer is a vital link in the chain of the macromolecule.

literary/educational

"one by one"

— Describing the sequential addition of monomers.

The monomers were added one by one to ensure a perfect sequence.

informal

"from the ground up"

— Building a polymer starting from the individual monomers.

We designed the new material from the ground up, starting with the monomers.

business/engineering

"break it down"

— To decompose a polymer into its constituent monomers.

To recycle the plastic, we must first break it down into monomers.

informal

"the basic unit"

— A standard way to define a monomer in any system.

The monomer is the basic unit of all synthetic fibers.

technical

"lock and key"

— Sometimes used to describe how specific monomers must fit together.

The monomers fit together like a lock and key to form the protein.

biological

"raw materials"

— A business term for monomers in a factory setting.

We need to secure a steady supply of raw monomers.

business

"molecular level"

— Discussing monomers by looking at the smallest possible scale.

To understand the plastic, you have to look at it on a molecular level.

scientific

間違えやすい

monomers vs monomer

Singular vs. Plural

Monomer refers to one unit; monomers refers to many units before or during bonding.

One monomer is added to the chain of monomers.

monomers vs atom

Both are small units.

An atom is a single chemical element; a monomer is a molecule made of several atoms.

The monomer contains carbon and hydrogen atoms.

monomers vs molecule

Monomers are molecules.

All monomers are molecules, but not all molecules (like water) are monomers.

Water is a molecule, but ethylene is a monomer.

monomers vs oligomer

Both are made of units.

An oligomer is a short chain (2-10 units); a monomer is just one unit.

Three monomers joined to form a trimer, which is an oligomer.

monomers vs residue

Used in biochemistry.

A residue is what a monomer becomes once it is part of a chain.

The amino acid monomer is now a residue in the protein.

文型パターン

These are [monomers].

These are monomers.

[Monomers] are [building blocks].

Monomers are building blocks.

[Monomers] link to form [polymers].

Monomers link to form polymers.

The [process] converts [monomers] into [polymers].

The reaction converts monomers into polymers.

The [property] is determined by the [monomer sequence].

The strength is determined by the monomer sequence.

The [stochastic] addition of [monomers] results in [outcome].

The stochastic addition of monomers results in high polydispersity.

If you [heat] the [monomers], they [react].

If you heat the monomers, they react.

It is essential to [purify] the [monomers].

It is essential to purify the monomers.

語族

名詞

動詞

形容詞

使い方

frequency

Common in scientific, industrial, and educational contexts.

よくある間違い

Calling a plastic bag a monomer. → Calling a plastic bag a polymer.
A monomer is a single unit; the bag is a finished product made of millions of units.
Confusing monomers with atoms. → Recognizing monomers are molecules.
Monomers are made of atoms, but they are complete molecules that can bond.
Saying 'monomer' when you mean 'isomer'. → Using 'monomer' for building blocks.
Isomers are about shape; monomers are about building chains.
Mispronouncing it as mo-NOM-er. → Pronouncing it as MON-o-mer.
The stress must be on the first syllable in English.
Thinking all monomers are the same. → Understanding there are thousands of types.
Each monomer has a unique chemical structure and purpose.

ヒント

Learn the Roots

Always remember 'mono' means one. This will help you distinguish it from 'poly' (many) and 'di' (two).

Be Specific

In scientific writing, try to name the specific monomer (e.g., 'styrene') rather than just saying 'the monomer'.

The Lego Rule

Visualize a single Lego brick. That is your monomer. The tower you build is the polymer.

Residual Risks

In a lab, always check for unreacted monomers, as they are often more reactive and hazardous than the final polymer.

Material Science

If you're interested in engineering, mastering monomer chemistry is essential for developing new technologies.

Bio-alternatives

Look for products made from 'bio-monomers' to support more sustainable manufacturing.

Identify the Pair

On tests, you'll often be asked to match a polymer with its monomer (e.g., Protein -> Amino Acid).

First Syllable

Put all the energy on the 'MON'. MON-o-mer. This makes you sound like an expert.

Word Family

Learn 'monomeric' (adjective) to describe properties at the single-unit level.

Natural vs Synthetic

Remember that nature was using monomers (DNA, proteins) billions of years before humans invented plastics.

暗記しよう

記憶術

Think of 'Mono' (one) and 'Mer' (member). A monomer is a 'one-member' unit. Many members make a 'Poly' (many) 'Mer' (member) group.

視覚的連想

Imagine a single train car sitting on a track. That is the monomer. When it hooks up to twenty other cars, it becomes a polymer.

Word Web

Chemistry Biology Plastics DNA Proteins Bonding Chain Units

チャレンジ

Try to identify three objects in your room and name the monomers that likely created them (e.g., a cotton shirt comes from glucose monomers in cellulose).

語源

The word 'monomer' was coined in the early 20th century, specifically around 1910-1915, as polymer science began to emerge as a distinct field. It was formed by combining two classical Greek roots.

元の意味： Derived from 'monos' meaning 'single' or 'alone' and 'meros' meaning 'part' or 'portion'.

Greek (roots) via International Scientific Vocabulary.

文化的な背景

No specific sensitivities, but be aware that in environmental contexts, discussing certain monomers (like BPA) can be politically or socially charged.

In English-speaking countries, the term is standard in STEM education from age 14 onwards.

The Graduate (1967) - Famous 'Plastics' scene indirectly references the industry built on monomers. Nobel Prize in Chemistry (1953) - Awarded to Hermann Staudinger for his work on monomers and polymers. National Geographic - Frequently uses the term in articles about ocean plastic.

実生活で練習する

実際の使用場面

Chemistry Lab

Measure the monomers.
The monomers are reacting.
Check for residual monomers.
Purify the starting monomers.

Biology Class

Amino acid monomers.
Nucleotide monomers in DNA.
Breaking down food into monomers.
The sequence of monomers.

Plastic Manufacturing

Monomer supply chain.
Cost of raw monomers.
Monomer storage tanks.
High-purity monomers.

Environmental Science

Leaching of monomers.
Monomer toxicity.
Biodegrading into monomers.
Residual monomer levels.

Dentistry/Medicine

Monomer liquid for resins.
Curing the monomers.
Biocompatible monomers.
Allergic reaction to monomers.

会話のきっかけ

"Did you know that the plastic in your phone started as a bunch of tiny monomers?"

"How do you think our bodies turn the monomers from our food into muscles?"

"What are the most common monomers used in the 3D printing industry today?"

"Is it possible to create a polymer that is completely biodegradable back into its monomers?"

"Why is the sequence of monomers so important for the function of a protein?"

日記のテーマ

Describe the journey of a single monomer as it becomes part of a vast polymer chain.

Imagine a world where monomers refuse to bond. How would life and technology change?

Research a specific monomer, like styrene, and write about its uses and environmental impact.

Explain the difference between natural and synthetic monomers to a younger sibling.

Discuss the ethical implications of creating new synthetic monomers that may never degrade.

よくある質問

10 問

The simplest example is ethylene (C2H4), which is used to make polyethylene plastic. In biology, glucose is a very simple and common monomer.

No, a molecule must have at least two functional groups to bond with other molecules and form a chain. If it can't bond, it's just a molecule.

Some synthetic monomers, like vinyl chloride or bisphenol A, can be toxic or harmful if they are not fully reacted into a polymer.

They undergo a chemical reaction called polymerization, usually triggered by heat, pressure, or a catalyst.

The monomers of DNA are called nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base.

A monomer is one unit. A dimer is two monomers joined together.

Understanding monomers allows us to create new materials, understand how our bodies work, and solve environmental problems like plastic waste.

Most synthetic monomers are derived from petrochemicals, which come from crude oil and natural gas.

Yes, 'chemical recycling' involves breaking polymers back down into their original monomers so they can be used again.

Yes, amino acids are the specific monomers that link together to form proteins.

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