Copolymer
The copolymer (English: copolymer or heteropolymer) is a polymer formed by polymerization of two or more monomers, and corresponds to a homopolymer obtained by polymerizing only one monomer. The structure of the copolymer has at least two structural units, which are chemically bonded between the structural units, which are different from the blends of the two polymers being mechanically or physically mixed. Compared with only one structural unit, the performance of a more homogeneous homopolymer, the structure of the copolymer unit and content can have a more flexible choice, in order to achieve the performance of the expansion and improvement. For some self-homogeneous monomers such as maleic anhydride, it is also possible to expand the range of use by forming a copolymer with other monomers. Common copolymers include acrylonitrile-styrene-butadiene copolymerized ABS resin, ethylene propylene rubber, styrene-butadiene rubber, nitrile rubber, styrene-isoprene-styrene copolymer (SIS resin), ethylene / Vinyl acetate copolymer and the like. ...