Patent ID: 8816011
Filing Date: 2014-08-26
Classification: C08F,C08L,C09D,C09J

Abstract:
1. A process for preparing a block copolymer by a sequentially implemented atom transfer radical polymerization (ATRP), the processing comprising: (A) adding a monofunctional initiator for initiating the reaction to a polymerization solution in a first portion; and, thereafter; (B) continuously adding a second portion of the monofunctional initiator, to obtain the block copolymer; wherein the block copolymer, which has an AB composition, has an overall molecular weight distribution with a polydispersity index of greater than 1.8, wherein block A is a copolymer having a monomodal molecular weight distribution with a polydispersity index of greater than 1.8, and comprises at least one (meth)acrylate, and wherein block B is a copolymer having a monomodal molecular weight distribution comprising at least one (meth)acrylate, and wherein the block copolymer has an overall polydispersity index of greater than 1.8.