微通道反应器中茂金属催化的乙丙共聚合研究  

Study on Copolymerization of Ethylene-Propylene Catalyzed by Metallocene in a Microchannel Reactor

作　　者：吴世虎 李倩[2] 李磊 袁炜 罗志[2] 李化毅[2] 鄢国平[1] WU Shi-hu;LI Qian;LI Lei;YUAN Wei;LUO Zhi;LI Hua-yi;YAN Guo-ping(Wuhan Institute of Technology,Wuhan 430205,China;Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Institute of Coal Chemical and Industry Technology,Ningxia Coal Co.Ltd,China Energy,Yinchuan 750411,China)

机构地区：[1]武汉工程大学,武汉430205 [2]中国科学院化学研究所工程塑料重点实验室,北京100190 [3]国家能源集团宁夏煤业有限责任公司煤炭化学工业技术研究院,银川750411

出　　处：《高分子通报》2021年第6期153-158,共6页Polymer Bulletin

基　　金：国家自然科学基金资助项目(5177030603);宁夏煤基合成树脂高值化产业技术协同创新中心(2017DC57)。

摘　　要：设计搭建了一套用于烯烃配位聚合的微通道反应系统,以rac-Me_(2)Si(2,5-Me_(2)-4-Ph-ThCp)_(2)ZrCl_(2)茂金属为主催化剂,甲基铝氧烷(MAO)为助催化剂,二甲苯为溶液,在1/8英寸不锈钢管的微通道中,研究了连续流动微通道中聚合温度、停留时间、微通道管长及投料比等对茂金属催化活性、乙烯/丙烯共聚物分子量及其分布、微观结构等结构性能的影响。结果表明,乙烯、丙烯成功在微通道反应器中实现连续共聚。A microchannel reaction system for olefin coordination polymerization was designed and built, using rac-Me_(2)Si(2,5-Me_(2)-4-Ph-ThCp)_(2)ZrCl_(2) metallocene as the catalyst, methylaluminoxane(MAO) as the cocatalyst, and xylene as the solution, the copolymerizations of ethylene and propylene were performed within a microchannel of 1/8 inch stainless steel tube. The influence of polymerization temperature, residence time, microchannel tube length and feed ratio on its catalytic activity of metallocene, molecular weight and its distribution of ethylene/propylene copolymerization, microstructure and thermal properties are studied. The results show that copolymers of ethylene and propylene are successfully continuous synthesized in the microchannel reactor.

关 键 词：微通道反应器 茂金属催化剂 乙丙共聚 

分 类 号：TQ316.314[化学工程—高聚物工业]