Explanation
One kind is macromolecule with multiple repeated monomer units that are combined by one or more molecules or molecular groups (structural units or monomer) with covalent bond. They can be natural products, such as fiber, protein, natural rubber, etc., or can be made by synthetic methods, such as synthetic rubber, synthetic resin, synthetic fiber and other non biological polymers, as well as synthetic biological macromolecule. polymer is composed of organic substances, but there are also polymer composed of inorganic substances. polymer is characterized by a wide variety, low density, high specific strength, good electrical insulation and corrosion resistance, and easy processing. It can meet the requirements of a variety of special uses, including plastics, fibers, rubber, coatings, adhesive and other fields, and can partially replace metal and non-metallic materials.
Classification
No classification at present.