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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (5): 447-452. 上一篇    下一篇

研究论文

探索光敏性共聚物P(St/CS-alt-MA)的自组装及其乳化行为

刘晓亚*,a,b 王益华b 易成林b 冯 艳b 江金强b
崔正刚b 陈明清b

  

  1. (a复旦大学高分子科学系聚合物分子工程教育部重点实验室 上海 200433)
    (b江南大学化学与材料工程学院 无锡 214122)

  • 投稿日期:2008-07-13 修回日期:2008-09-25 发布日期:2009-03-14
  • 通讯作者: 刘晓亚

Self-assembly and Emulsification Behavior of Photo-sensitive P(St/CS-alt-MA) Copolymer

Liu, Xiaoya *,a,b Wang, Yihua b Yi, Chenglin b Feng, Yan b Jiang, Jinqiang b
Cui, Zhenggang b Chen, Mingqing b
  

  1. (a Key Laboratory for Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science,
    Fudan University, Shanghai 200433)
    (b School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122)
  • Received:2008-07-13 Revised:2008-09-25 Published:2009-03-14

PDF

1333

被引次数

36 | 7

以苯乙烯(St)、马来酸酐(MA)、香豆素苯乙烯醚化物(CS)为单体, 通过自由基溶液聚合合成了双亲性交替共聚物P(St/CS-alt-MA), 用凝胶渗透色谱、核磁共振等对聚合物结构进行表征, 并对其溶液自组装及组装体的乳化性进行了研究. 结果表明双亲性P(St/CS-alt-MA)可以在选择性溶剂中进行自组装形成马来酸酐单元为亲水微区、CS与苯乙烯单元为疏水微区的胶体粒子, 用紫外分光光度计, XPS, TEM研究了聚合物胶体粒子性质, 结果显示, P(St/CS-alt-MA)在水溶液中可以形成两亲性聚合物胶体粒子, 亲水单元在胶粒表面富集, 该两亲性聚合物胶体粒子具有良好的乳化性能.

关键词: 光敏性, 双亲性, 自组装, 胶体粒子, 乳化剂

A new amphiphilic alternating copolymer P(St/CS-alt-MA) was prepared through free radical copolymerization. The copolymer structure was examined by GPC and 1H NMR. The amphiphilic copolymer could aggregate into nanoparticles in selective solution. The micellization and the critical water content (CWC) of P(St/CS-alt-MA) in deionized water were monitored by UV-Vis spectroscopy. The diameters and morphologies of the particles were examined by TEM and XPS. The results show that hydrophilic units are enriched on the surface of the colloid particle and such amphiphilic colloid particles are of efficient emulsification properties.

Key words: photo-responsive, amphiphilic, self-assembly, particle, emulsifier