| 溶剂对rac-Et[Ind]_2ZrCl_2/MMAO催化体系催化乙烯-降冰片烯共聚合的影响 |
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| 引用本文： | 张浩,;蔡小平,;张春雨,;董博,;胡庆娟,;刘景圣,;张贺新,;张学全.溶剂对rac-Et[Ind]_2ZrCl_2/MMAO催化体系催化乙烯-降冰片烯共聚合的影响[J].弹性体,2014(4):4-7. |
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| 作者姓名： | 张浩 ;蔡小平 ;张春雨 ;董博 ;胡庆娟 ;刘景圣 ;张贺新 ;张学全 |
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| 作者单位： | [1]吉林农业大学小麦和玉米深加工国家工程实验室食品科学与工程学院,吉林长春130118; [2]中国科学院长春应用化学研究所高性能合成橡胶工程技术中心,吉林长春130022; [3]中国石油天然气股份有限公司吉林石化公司,吉林吉林132021 |
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| 基金项目： | 中国科学院创新团队项目资助（50921062） |
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| 摘 要： | 采用乙基桥连二茚基二茚基二氯化锆(rac-EtInd]2ZrCl2)/MMAO催化体系催化乙烯/降冰片烯共聚合,比较了甲苯、苯、正己烷、环己烷及其混合溶剂作为反应介质对共聚合活性及共聚物结构的影响。通过差示扫描量热分析(DSC)对共聚产物进行了热力学性质的表征。结果表明,聚合活性和产品的玻璃化转变温度(Tg)在不同溶剂体系中有着显著的差异,在相同聚合条件下,当甲苯/苯体积比为80/20时,聚活活性达到最高,但产品的Tg和降冰片烯的插入率较低。
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| 关 键 词： | 环烯烃共聚物 共聚合 反应介质 |
Effect of polymerization medium on ethylene/norbornene copolymerization initiated with rac-Et[Ind]2ZrCl2 and MMAO cocatalyst |
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| Zhang Hao;Cai Xiaoping;Zhang Chunyu;Dong Bo;Hu Qingjuan;Liu Jingsheng;Zhang Hexin;Zhang Xuequan.Effect of polymerization medium on ethylene/norbornene copolymerization initiated with rac-Et[Ind]2ZrCl2 and MMAO cocatalyst[J].China Elastomerics,2014(4):4-7. |
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| Authors: | Zhang Hao;Cai Xiaoping;Zhang Chunyu;Dong Bo;Hu Qingjuan;Liu Jingsheng;Zhang Hexin;Zhang Xuequan |
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| Affiliation: | Zhang Hao,Cai Xiaoping,Zhang Chunyu,Dong Bo,Hu Qingjuan,Liu Jingsheng,Zhang Hexin(1.National Engineering Laboratory for Wheat and Corn Deep Processing, College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China ;2.Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China;3.Jilin Petrochemical Company, PetroChina , Jilin 132021, China) |
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| Abstract: | Ethylene/norbornene copolymers were prepared by using rac-Et Ind]2ZrCl2/MMAO catalyst system.The effect of polymerization medium （toluene,benzene,n-hexane,cyclohexane and their mixture） on catalyst activity and copolymer composition was investigated.The resultant copolymers were characterized by DSC to study the thermal property.It was found that the polymerization medium has significant effect on catalyst activity,glass transition temperature and copolymer composition.The highest catalyst activity was observed when toluene/benzene=80/20,while the glass transition temperature and norbornene content was lower. |
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| Keywords: | cyclo olefin copolymer copolymerization polymerization medium |
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