甲基丙烯酸甲酯和长链烷基酯的嵌段共聚

Anionic Block Copolymerization of Methyl Methacrylate and C 7￣9 Methacrylate

甲基丙烯酸甲酯和长链烷基酯的嵌段共聚戴李宗＊邹友思郭金泉潘容华（厦门大学化学系厦门３６１００５）关键词阴离子聚合，甲基丙烯酸酯，嵌段共聚合，表征１９９６－０８－０７收稿，１９９６－１１－１８修回国家自然科学基金资助项目嵌段共聚合能得到具微相体系的共聚...

The anionic block copolymerization of MMA and C 7￣9 methacrylate (C 7￣9 MA) was studied using n BuLi as initiator. PC 7￣9 MA b PMMA copolymer was obtained. The influences of sequence in monomer feed, temperature, concentration of initiator and active chain length of PC 7￣9 MA - on block copolymerization were discussed. When T =-20℃, =(5 30±0 04)×10 -2 mol/L and C 7￣9 MA as first monomer, PC 7￣9 MA - with n￣1 6×10 4 was favorable to the copolymerization of PC 7￣9 MA b PMMA. The relative molecular mass and relative molecular mass distribution of copolymer were measured by GPC. The structure of block copolymer was characterized by FTIR and 1H NMR.