| 摘要 |
A process for producing a branched polymer, characterized by polymerizing a macromonomer which is a vinyl polymer produced by radical polymerization having per molecule one terminal group having a polymerizable carbon-carbon double bond. Since the macromonomer used is a vinyl polymer having a termina l group having a polymerizable carbon-carbon double bond such as a (meth)acryloyl group in a high proportion, a graft copolymer, star polymer, gel, or the like which has a vinyl polymer as branches, whose synthesis has conventionally been difficult, is easily synthesized. Furthermore, by producing the macromonomer by living radical polymerization, especially atom ic- transfer radical polymerization, the side chains of the polymer obtained hav e a well-regulated molecular weight.
|
