#|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z Index  

Copolymer - short version

A polymer made up of long chains of 2 repeating monomers such as styrene acrylonitrile.

Copolymer - long version

copolymer is a polymer derived from two (or more) monomeric species, as opposed to a homopolymer where only one monomer is used. Copolymerization refers to methods used to chemically synthesize a copolymer.

Commercially relevant copolymers include ABS plastic, SBR, Nitrile rubber, styrene-acrylonitrile, styrene-isoprene-styrene (SIS) and ethylene-vinyl acetate.

Copolymerization is used to modify the properties of man-made plastics to specific needs, for example to reduce crystallinity, modify glass transition temperature or to improve solubility. It is a way of improving mechanical properties, in a technique known as rubber toughening. Elastomeric phases within a rigid matrix act as crack initiators, and so increase the energy absorption when the material is impacted for example. Acrylonitrile butadiene styrene is a common example.


IQ Catch Banner


Definition in Chinese | Definition in French | Definition in Italian | Definition in Spanish | Definition in Dutch | Definition in Portuguese | Definition in German | Definition in Russian | Definition in Japanese | Definition in Greek | Definition in Turkish | Definition in Hebrew | Definition in Arabic | Definition in Swedish | Definition in Korean | Definition in Hindi | Definition in Vietnamese | Definition in Polish | Definition in Thai