| 无水AlCl_3作用下EPDM的交联与接枝性能 |
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| 引用本文： | 徐建平,刘涛涛,承民联,陈建定.无水AlCl_3作用下EPDM的交联与接枝性能[J].高分子材料科学与工程,2009(6). |
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| 作者姓名： | 徐建平 刘涛涛 承民联 陈建定 |
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| 作者单位： | 江苏工业学院材料科学与工程系;华东理工大学材料学院; |
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| 基金项目： | 江苏省自然科学基金资助项目(BK2003028) |
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| 摘 要： | 以无水AlCl3为催化剂,在溶液体系考察了温度、催化剂用量、溶剂品种等因素对乙丙三元橡胶(EPDM)交联与接枝性能的影响。结果显示,无水AlCl3可以引发EPDM间产生交联反应;温度较低时,EPDM交联反应困难,但乙丙三元橡胶与聚苯乙烯(PS)间产生了接枝反应;在苯与二甲苯溶剂中不易形成活性正碳离子;催化剂用量增大,凝胶含量与交联密度增大;PS进入EPDM凝胶网络,使PS相热稳定性提高,玻璃化温度提高。
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| 关 键 词： | 乙丙三元橡胶 聚苯乙烯 Friedel-Crafts烷基化反应 路易斯酸 阳离子聚合 |
Behaviours of Crosslinking and Grafting of EPDM in the Presence of Anhydrous Aluminum Chloride |
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| XU Jian-ping,LIU Tao-tao,CHENG Ming-lian,CHENG Jian-ding.Behaviours of Crosslinking and Grafting of EPDM in the Presence of Anhydrous Aluminum Chloride[J].Polymer Materials Science & Engineering,2009(6). |
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| Authors: | XU Jian-ping LIU Tao-tao CHENG Ming-lian CHENG Jian-ding |
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| Affiliation: | 1.Department of Materials Science and Engineering;Jiangsu Polytechnic University;Changzhou 213016;China;2.School of Materials Science and Engineering;East China University of Science and Technology;Shanghai 200237;China |
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| Abstract: | With AlCl3 as catalyst in solution system,the influence of temperature,amounts of catalyst,kinds of solvent on properties of crosslinking and grafting of ethylene-propylene-diene terpolymer(EPDM)were investigated.The results show:At low temperature,the crosslinking reaction is difficult,but the grafting reaction between EPDM and polystyrene(PS)occurs.It is difficult to initiate EPDM macro-carbocation in benzene or xylene solution.The amount of gel and the crosslink density increase with the amount of cataly... |
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| Keywords: | EPDM PS Friedel-Crafts alkylation Lewis acids cation polymerization |
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