出典:Wikipedia
出典:『Wikipedia』 (2011/07/06 10:31 UTC 版)
Copolymers are polymers that are synthesized with more than one kind of repeat unit (or monomer). It exhibits a gradual change in monomer composition from predominantly one species to predominantly the other, unlike with block copolymers, which have an abrupt change in composition, and random copolymers, which have no continuous change in composition (see Figure 1). In the gradient copolymer, as a result of the gradual compositional change along the length of the polymer chain less intrachain and interchain repulsion are observed.