三乙酰丙酮钒催化乙烯/1-己烯和乙烯/1,3-丁二烯共聚合反应性能研究  

Catalytic performance of V(acac)_3 in ethylene/1-hexene and ethylene/1,3-butadiene copolymerization

作　　者：于湧涛 王立新[2] 李艳薇[3] 李连鹏 YU Yongtao WANG Lixin LI Yanwei LI Lianpeng(Research Institute of Jilin Petrochemical Company, PetroChina, Jilin 132021, China Refinery Plant of Jilin Petrochemical Company ,PetroChina ,Jilin 132022 ,China Carbon Fiber Plant of Jilin Petrochemical Company ,PetroChina ,Jilin 132021 ,China)

机构地区：[1]中国石油公司吉林石化公司研究院,吉林吉林132021 [2]中国石油吉林石化公司炼油厂,吉林吉林132022 [3]中国石油吉林石化公司碳纤维厂,吉林吉林132021

出　　处：《弹性体》2017年第1期50-55,共6页China Elastomerics

摘　　要：采用三乙酰丙酮钒-倍半乙基铝[V(acac)_3-Et_3Al_2Cl_3]催化体系,研究了乙烯/1-己烯和乙烯/1,3-丁二烯共聚合行为;同时利用核磁共振仪、差示扫描量热仪、流变仪等对共聚物的结构和性能进行了表征。结果表明,V(acac)_3-Et_3Al_2Cl_3催化乙烯/1-己烯得到的共聚物中1-己烯都是以被乙烯单元所隔离的形式而存在,铝钒物质的量比为50时该催化体系达到最高催化活性。V(acac)_3-Et_3Al_2Cl_3催化乙烯/1,3-丁二烯的共聚合得到的共聚物为嵌段共聚物,二烯烃以反式-1,4方式插入共聚物链中。In this paper, the behaviors of the copolymerization of ethylene/1-hexene and ethylene/ 1,3-butadiene were studied by using V（acac）3-Et3A12C13 catalyst.And by means of ^13C-NMR,DSC and rheometer,the structure and properties of copolymers were characterized.The results showed that the 1-hexene units exist in the form of isolated in the ethylene/1-hexene copolymer. The activity of ethylene/1-hexene copolymerization got to the maximum when the ratio of n （Al）/n （V） was 50.Also the investigation was made of the catalyst system for the copolymerization of ethylene/1, 3-butadiene, and then block copolymers were obtained. Only trans-1, 4 units of the inserted 1, 3-butadiene monomers were found in the chains of the copolymers.

关 键 词：钒系催化剂 乙烯共聚合 结构和性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]