甲基丙烯酸甲酯第三单体对于稀土催化降冰片烯与苯乙烯共聚的影响  

Effect of Methyl Methacrylate as a Third Monomer on Copolymerization of Norbornene and Styrene Catalyzed by Nd(naph)_3-Al(i-Bu)_3

作　　者：李正辉[1] 徐卫红[1] 胡敏杰[1] 谢晨光[1] 高浩其[1] 房江华[1] 

机构地区：[1]宁波工程学院材料与化学工程学院,浙江宁波315016

出　　处：《宁波大学学报（理工版）》2016年第4期82-85,共4页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：宁波市自然科学基金(2014A610133);宁波市有机高分子创新团队项目

摘　　要：随着甲基丙烯酸甲酯第三单体的加入,可以大大地提高Nd(naph)3-Al(i-Bu)3(naph=环烷酸)稀土系催化剂催化降冰片烯与苯乙烯共聚产物的分子量,并使分子量分布变窄.文中采用凝胶渗透色谱、核磁共振和红外光谱方法证明了三元共聚物的合成,并研究了不同反应条件下对于聚合的影响.结果表明:稀土催化剂在温和的反应条件下有较好的催化性能,并且共聚物分子量分布较小.Adding the third monomer methyl methacrylate can greatly increase the molecular weight of the copolymerization product of norbomene and styrene catalyzed by rare earth-based catalyst Nd（naph）3-Al（i-Bu）3 （naph=naphthenate）, and can narrow the molecular weight distribution. With gel permeation chromatography, the nuclear magnetic resonance and infrared spectroscopy the synthesis of terpolymer is accomplished under the reaction condition for the polymerization. The results demonstrate that, under mild reaction condition, the rare earth catalyst possesses the better catalytic properties, and the molecular weight distribution of the copolymer is small.

关 键 词：环烷酸钕 三异丁基铝 降冰片烯 苯乙烯 甲基丙烯酸甲酯 

分 类 号：O631.5[理学—高分子化学]