| 钼系催化剂催化异戊二烯聚合研究 |
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| 引用本文： | 王鹏,徐召来,邵华锋,姚薇,黄宝琛. 钼系催化剂催化异戊二烯聚合研究[J]. 化学推进剂与高分子材料, 2010, 8(2): 52-54,64 |
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| 作者姓名： | 王鹏 徐召来 邵华锋 姚薇 黄宝琛 |
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| 作者单位： | 青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛,266061;青岛伊科思新材料股份有限公司,山东青岛,266061;青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛,266061 |
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| 基金项目： | 国家自然科学基金资助项目(20674042) |
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| 摘 要： | 以磷酸三丁酯取代的五氯化钼(简称Mo)及间甲酚取代的三异丁基铝(简称Al)为催化剂引发异戊二烯(Ip)聚合,考察了n(Mo):n(Ip)、n(Al):n(Mo)及聚合温度对单体转化率和催化剂效率的影响。采用FTIR和1H-NMR对聚合产物的微观结构进行测试表征,用DSC测定聚合产物的玻璃化转变温度(Tg);结果表明在反应温度为50℃、n(Mo):n(Ip)为4.0×10-4、n(Al):n(Mo)为30、聚合24h所得的聚异戊二烯(PIp)中1,4-结构摩尔分数为55.7%,3,4-结构的为22.5%和1,2-结构的为21.8%,该PIp的Tg为-35.1℃。
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| 关 键 词： | 钼系催化剂 三异丁基铝 异戊二烯 配位聚合 结构表征 |
Research on Polymerization of Isoprene Catalyzed With Molybdenum Series Catalysts |
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| WANG Peng,XU Zhao-lai,SHAO Hua-feng,YAO Wei,HUANG Bao-chen. Research on Polymerization of Isoprene Catalyzed With Molybdenum Series Catalysts[J]. Chemical Propellants & Polymeric Materials, 2010, 8(2): 52-54,64 |
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| Authors: | WANG Peng XU Zhao-lai SHAO Hua-feng YAO Wei HUANG Bao-chen |
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| Affiliation: | 1. Key Laboratory of Rubber-Plastics Ministry of Education;Qingdao University of Science and Technology;Qingdao 266042;China;2. Qingdao Yikesi New Materials Co Ltd;Qingdao 266061;China |
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| Abstract: | The polymerization of isoprene was initiated using tributyl phosphate substituted molybdenum pentachloride(Mo for short) and m-cresol substituted triisobutyl aluminum(Al for short) as catalysts. The influence of n(Mo):n(Ip), n(Al):n(Mo) and the polymerization temperature on the monomer conversion and catalyst efficiency was investigated. The microstructures of polymerization products were identified and characterized by FT-IR and 1H-NMR. The glass transition temperatures(Tg) of the polymerization products w... |
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| Keywords: | molybdenum series catalyst triisobutyl aluminum isoprene coordination polymerization structure characterization |
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