摘要
对比了4种Ni,Co化合物分别与倍半乙基铝所组成的体系对丁二烯-苯乙烯共聚的催化活性;详细研究了Co-Al催化体系的制备条件和工艺参数对共聚物的[η],微观结构和结合St含量的影响,合成出顺式-1,4含量>95％(mol)、结合St含量为5％—10％(mol),[η]=2—2.7dL/g的丁苯共聚物,从而开发出一种新型丁苯共聚催化剂。
A new type of catalyst, Co (naph)2-Al2Et3Cl3-toluene system was developed for the copolymerization of bu tadiene ( Bd ) and styrene (St). The effects of aging conditions for catalyst, Al/Co molar ratio, catalyst concentration, monomer concentration, and polymerization temperature and time on the intrinsic viscosity, microstructure and St content of copolymer were investigated. The Bd-St copolymer with cis-1,4 Bd unit>95%, St content 5 %-10% and intrinsic viscosity 2-2.7 dL/g were synthesized.
出处
《合成橡胶工业》
CAS
CSCD
北大核心
1990年第4期244-248,共5页
China Synthetic Rubber Industry
基金
国家自然科学基金
关键词
丁二烯
苯乙烯
共聚
催化活性
cobalt Ziegler-Natta catalyst
butadiene
styrene
high cis-l,4-butadiene-styrene copolymer
solution copolymerization
cata- lytic activity
