| 醋酸乙烯的RAFT溶液聚合 |
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| 引用本文： | 李欣,张军华.醋酸乙烯的RAFT溶液聚合[J].高分子材料科学与工程,2008,24(9). |
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| 作者姓名： | 李欣 张军华 |
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| 作者单位： | 高分子材料工程国家重点实验室(四川大学),四川大学高分子研究所,四川,成都,610065 |
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| 基金项目： | 中国石化集团四川维尼纶厂项目 |
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| 摘 要： | 醋酸乙烯是一种高活性单体,文中实验研究了PVAc用RAFT方法进行的溶液聚合,将PVAc的分子量分布控制在1.8以下.实验采用MESA作为RAFT试剂,讨论了不同MESA浓度、温度和时间对反应的影响.
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| 关 键 词： | 活性可控自由基聚合 聚合乙烯醇 溶液聚合 |
Vinyl Acetate Solution Polymerization by RAFT |
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| LI Xin,ZHANG Jun-hua.Vinyl Acetate Solution Polymerization by RAFT[J].Polymer Materials Science & Engineering,2008,24(9). |
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| Authors: | LI Xin ZHANG Jun-hua |
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| Abstract: | Compared with traditional radical polymerization,Living/Controllble radical polymerizations are good at controlling the polymer structure and molecular weight distribution.Among the controllable radical polymerizations,ATRP and RAFT are the most popular polymerization methods suitable for kinds of monomers under relatively mild condition.VAc is a highly reactive monomer.RAFT has been successfully utilized to produce PVAc in a controllable manner,but the polymerization using ATRP has met with limited success.Most of the research works reported of VAc polymerization by RAFT are in bulk or emulsion polymerization instead of solution polymerization.In this article,MESA was used as chain transfer mediated reagent to control the PDI under 1.8.The effects of concentration of MESA,polymerization temperature and time have been studied. |
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| Keywords: | RAFT |
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