石油化工2024，Vol.53Issue(8)：1104-1109,6.DOI:10.3969/j.issn.1000-8144.2024.08.005
第三组分对茂金属催化乙烯与降冰片烯共聚的影响
Influence of third component on copolymerization of ethylene and norbornene by using metallocene catalyst
摘要
Abstract
To catalyze the copolymerization of ethylene and norbornene(NBE),Ph2C(Cp)(Flu)ZrCl2 was used as the main catalyst and methylaluminoxane(MAO)or the combination of organoboron and organoaluminum as the co-catalysts,with sterically hindered phenols introduced as the third component(TC).The resulted polymer was characterized by GPC,DSC,and 13C NMR,and the effects of TCs on NBE incorporation,polymerization activity,polymer molecular weight,and glass transition temperature were studied.Results show that the introduction of TCs can improve the incorporation of NBE and affect the distribution of NBE in the polymer chain.At the same time,in the MAO-activated catalytic system,the polymerization activity decreases and the molecular weight of the polymer increases,while the catalytic system activated by the combination of organoboron and organoaluminum shows the opposite behavior.关键词
茂金属/环烯烃共聚物/第三组分/聚合行为Key words
metallocene/cycloolefin copolymer/third component/polymerization behavior分类
化学化工引用本文复制引用
王伟..第三组分对茂金属催化乙烯与降冰片烯共聚的影响[J].石油化工,2024,53(8):1104-1109,6.基金项目
国家基金委企业联合基金集成项目(U22B6012). （U22B6012）
