摘要
本文研究了Ｎｉ（ｎａｐｈ）２Ａｌ（ｉＢｕ）３－ＢＦ３·ＯＥｔ２＋ＲＯＨ新型镍系催化体系催化丁二烯的聚合动力学，考察了该体系的动力学曲线、速度方程、聚合度，测定了催化剂利用率、活性中心浓度等动力学参数。聚合速率对单体浓度呈一级关系，表观活化能为４０．４ｋＪ／ｍｏｌ，催化剂利用率约为１０％。
he kinetics of butadiene polymerization with Ni(naph)2—Al(i-Bu)3—BF3·OEt2+ROH catallytic system was investigated.The results revealed that the system behaved as a kind of polymeric system with quick initiation,successive propagation and no termination.In the incipient period of polymerization,the order of polymeric velocity to monomer concentration was 1.The apparent activation energy was 40.4kJ/mol;the efficiency of catalyst was about 10%.
出处
《弹性体》
CAS
1997年第4期5-9,共5页
China Elastomerics
关键词
镍
催化剂
聚丁二烯
动力学
橡胶
聚合
Nickel catalyst
Butadiene polymerization
Kinetics of polymerization
