| RAFT聚合制备星型聚合物 |
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| 引用本文： | 靳清.RAFT聚合制备星型聚合物[J].科学技术与工程,2011,11(9):2067-2069. |
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| 作者姓名： | 靳清 |
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| 作者单位： | 青岛大学化学化工与环境学院,青岛,266071 |
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| 摘 要： | 通过先臂法合成PBA/HDDA型星型聚合物。首先,以丙烯酸丁酯(BA)为单体,巯基乙醇苄基三硫碳酸酯(BSSE)为链,转移剂合成线形大分子链转移剂PBA。然后以双官能团的偶联剂1,6-己二醇二丙烯酸酯(HDDA)为交联剂,合成星型聚合物。交联剂HDDA与PBA的摩尔比影响星型聚合物的转化率。用GPC测定PBA和星型聚合物的分子量和分子量分布,结果表明,HDDA与PBA的摩尔比越高,星型聚合物的合成转化率越高;但星型聚合物的分子量不会有太大变化。当HDDA与PBA的比例超过一定值时,会产生凝胶。星型聚合物的分子量分布很窄(PDI<1.1)。
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| 关 键 词： | 星型聚合物 RAFT 交联 |
| 收稿时间： | 1/6/2011 1:07:20 PM |
| 修稿时间： | 1/6/2011 1:07:20 PM |
Synthesis of star polymers via reversible addition-fragmentation chain transfer polymerization |
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| jin qing.Synthesis of star polymers via reversible addition-fragmentation chain transfer polymerization[J].Science Technology and Engineering,2011,11(9):2067-2069. |
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| Authors: | jin qing |
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| Institution: | JIN Qing,YAO Hong-wei (College of Chemical Engineering and Environment,Qingdao University,Qingdao 266071,P.R.China) |
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| Abstract: | Star polymers based on PBA/HDDA were synthesized by arm-first method.First,the linear macro RAFT agent PBA was synthesized by reversible addition-fragmentation chain transfer(RAFT) polymerization.Then,the star core formed by using HDDA as the cross-linker.The molar ratio of HDDA to PBA affected the conversion of the star polymers.Molecular weight and distribution of the linear macro RAFT agent PBA and the star polymers were characterized by gel permeation chromatography(GPC).The results confirme that the mo... |
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| Keywords: | star polymers RAFT cross linking |
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