胡合成,潘鹏举,包永忠

• 1:化学工程联合国家重点实验室(浙江大学)浙江大学化学工程与生物工程学院

摘要(Abstract)：

通过单电子转移-蜕化链转移活性自由基聚合合成不同组成的两亲性聚N-异丙基丙烯酰胺-b-聚氯乙烯-b-聚N-异丙基丙烯酰胺(PNIPAM-b-PVC-b-PNIPAM)三嵌段共聚物,并制备共聚物胶束水溶液,采用荧光光谱、动态光散射、透射电镜、紫外-可见光谱等表征共聚物的临界胶束浓度、胶束结构及温度响应性。结果表明,共聚物可在水中形成以PVC为核、PNIPAM为壳的球形胶束,胶束尺寸在75~135 nm;随着共聚物亲水PNIPAM链段含量的增加,临界胶束浓度增大,而胶束尺寸减小。在升温过程中,胶束溶液的透光率逐渐降低,低临界溶解温度随着共聚物亲水链段含量的增加而增大。

关键词(KeyWords)： 聚氯乙烯;聚N-异丙基丙烯酰胺;嵌段共聚物;活性自由基聚合;自组装

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(21676235)

作者(Author): 胡合成,潘鹏举,包永忠

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