Copolymers are a variety of polymers whose molecular chains ( macromolecules ) consist of two or more different structural units. Distinguish between regular and irregular copolymers (of which most). The various structural units of the irregular copolymers are randomly arranged along the chain. In regular copolymers, however, the various structural units are arranged in an orderly manner and, therefore, regular copolymers can be represented as ordinary polymers with large structural units. Separately, block copolymers consisting of several (homo) polymer blocks can be called.
Copolymerization - the reaction of obtaining copolymers, polymerization , in which two or more different monomers are involved.
Types of copolymers
The monomers from which the copolymers are made can be combined in different ways [1] :
- alternating :
(AB) n
- periodic :
(ABA) n
- statistical :
(AABAAABBAB)
- block copolymer :
(A) n - (B) m
- vaccinated :
(AAAAAAAAAA)
|
BBBBB-
- comb - like - grafted with very long lateral radicals [2] .
See also
- Polymer crazing
- Monomer
- Macromolecule
- Polymerization
- Polymers
- Block copolymer
- Radical polymerization
Links
- Chem421: Introduction to Polymer Chemistry . Statistical Copolymerization ( inaccessible link) . Department of Chemistry University of Rochester . Date of treatment September 19, 2006. Archived September 19, 2006.
- Volynsky, Alexander Lvovich. How to mix polymers? // Nature . - 2014. - No. 3. - S. 44β52.
- β Chem421 .
- β Volynsky, 2014 .