摘要
讨论了用阴离子方法进行了二烯与甲基丙烯酸甲酯共聚合的过程，并用ＧＰＣ、ＦＴＩＲ、ＮＭＲ和动态粘弹谱对共聚物进行了表征．证明所得聚合物为具有较高分子量、窄分布的二嵌段共聚物．
The known structure block copolymers could be obtained through anionic polymerization if the solvents and monomers were purified rigorously.This paper described the procedure about the synthesis of poly(butadiene)-block-poly (methyl methacrylate)copolymers.The polarity of solvents used for polymerization affects drastically the tacticity of polybutadiene.As the butadiene polymerized in THF instal of benzene,its Tg increases from -67℃ to -20℃.The results from the characterization of GPC,FTIR,NMR andDMA demonstrated that the polymers obtained were block copolymers with contents morethan 80% 1,4 polybutadiene and 70% syndiotachc PMMA.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1996年第1期41-46,共6页
Acta Polymerica Sinica
基金
国家自然科学基金
关键词
阴离子聚合
丁二烯
甲基丙烯酸甲酯
共聚物
Anionic polymerization,Poly(butadiene)-block-Poly(methyl methactylate)copolymers,Blockcopolymer,Solvent polarity
