新型桥联单茂锆/MAO体系催化降冰片烯聚合研究  

Polymerization of norbornene with a novel side-chain functionalized monozirconocene/MAO catalyst system

作　　者：王志军 聂万丽[1] Maxim V.Borzov 

机构地区：[1]西北大学化学与材料科学学院,陕西西安710069

出　　处：《化学试剂》2012年第8期688-690,693,共4页Chemical Reagents

基　　金：国家自然科学基金资助项目(20702041;2107-2157);陕西省外专局资助项目(20106100079)

摘　　要：采用两种新型咪唑侧链官能化单茂锆{Ph2CN2C4H6CpZrCl3和PhCHN2C4H6CpZrCl3}与甲基铝氧烷(MAO)组成的催化体系进行降冰片烯的聚合,考察了不同温度、不同Al/Zr对催化效率的影响。得到了透明度高,能溶于有机溶剂,熔点高于400℃的聚降冰片烯。该催化体系在80℃、Al/Zr为500时催化活性最高,可达到104g PNBE/(molZr.h)。通过对聚合产物FTIR的分析,得到了不同条件下的主要聚合方式。Polymerization of norbomene was carried out in the presence of a novel catalyst system： 1-methyl-lH-imidazole side-chain functionalized mono zirconocene/methylaluminoxane. Different reaction temperature and Al/Zr mole ratio were investigated. This catalyst shows the highest activity about 104 g PNBE/（mol Zr.h）at 60℃ and Al/Zr mole ratio 500. A high transparency and soluble polynorbornene was achieved,and the TG result shows that its melting point is higher than 400 ℃. The FT-IR spectra show that the microstucture of polynorbornene will be varied under different reaction condition.

关 键 词：茂金属催化剂 甲基铝氧烷 降冰片烯 聚合 

分 类 号：TQ316.31[化学工程—高聚物工业]