abstract |
(57) [Summary] [Purpose] To provide a random copolymer of methacrylic acid ester and acrylic acid ester having a narrow molecular weight distribution, high syndiotacticity of the methacrylic acid ester chain portion, high strength, and high heat resistance. To do. [Structure] A random copolymer having a narrow molecular weight distribution is produced by randomly copolymerizing a mixture of an alkyl methacrylic acid ester and an acrylic acid alkyl ester using an organic rare earth metal compound as an initiator. |