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溶剂对rac-Et[Ind]2ZrCl2/MMAO催化体系催化乙烯-降冰片烯共聚合的影响
  • ISSN号：1005-3174
  • 期刊名称：《弹性体》
  • 时间：0
  • 分类：O632.12[理学—高分子化学;理学—化学]
  • 作者机构：[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
  • 相关基金：中国科学院创新团队项目资助（50921062）
作者： 张浩[1,2], 蔡小平[3], 张春雨[2], 董博[2], 胡庆娟[2], 刘景圣[1], 张贺新[2], 张学全[2]
关键词： 环烯烃共聚物, 共聚合, 反应介质, cyclo olefin copolymer, copolymerization, polymerization medium
中文摘要：

采用乙基桥连二茚基二茚基二氯化锆（rac-Et[Ind]2 ZrCl2）/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.

英文摘要：

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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期刊信息
  • 《弹性体》
  • 中国科技核心期刊
  • 主管单位:中国石油天然气集团公司
  • 主办单位:吉林石化分公司 全国合成橡胶信息总站
  • 主编：王勋章
  • 地址：吉林市遵义东路27号
  • 邮编：132021
  • 邮箱：elastomerics@sina.com
  • 电话：0432-63995190 63994008
  • 国际标准刊号：ISSN：1005-3174
  • 国内统一刊号：ISSN：22-1229/TQ
  • 邮发代号:12-110
  • 获奖情况:
  • 曾获吉林省“双十佳”期刊及吉林省一级期刊荣誉
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,中国中国科技核心期刊,中国北大核心期刊（2008版）
  • 被引量:5316