【Basic Knowledge of Glossary Definitions for “Polymers and Materials”-005】Glossary definitions related to polymers
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1. Polymers: Polymers refer to compounds composed of numerous atoms or atomic groups bonded together primarily by covalent bonds, with a relative molecular weight of over 10,000. 2. Monomers: Low-molecular-weight raw materials used to synthesize polymers. 3. Repeating unit: The smallest basic unit that repeats throughout the polymer’s macromolecular chain and has the same composition. For example, the repeating unit of polyvinyl chloride is … 4. Monomer unit: A structural unit that, compared to the raw material, has exactly the same types of atoms and the same numbers of each atom, with only differences in its electronic structure; such a structural unit is also referred to as a monomer unit
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The monomer of polyvinyl chloride is vinyl chloride; therefore, acrylic acid is also a monomer.