Preparation of polymeric nanocapsules by radiation induced miniemulsion polymerization

被引：33

作者：

Chen, Yun ^{[1
]}

Liu, Huarong ^{[1
]}

Zhang, Zhicheng ^{[1
]}

Wang, Shijie ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Hefei 230026, Anhui, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2007年 / 43卷 / 07期

关键词：

polymeric nanocapsules; miniemulsion polymerization; styrene/N-vinyl pyrrolidone; gamma radiation; grafting;

D O I：

10.1016/j.eurpolymj.2007.04.013

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this research, polystyrene (PSt) nanocapsules with liquid cores were prepared by (CO)-C-60 gamma-ray radiation induced mini-emulsion polymerization, in which N-vinyl pyrrolidone (NVP) was used as the polar monomer. The characterization of polymer was carried out by H-1 NMR. It was verified that during polymerization, graft copolymerization between poly (pyrrolidone) (PVP) and PSt had taken place instead of random copolymerization. The interfacial tension between polymer and water was reduced because of the grafting reaction that had occurred, which was helpful to form nanocapsules. The influence of the ratio of St to NVP, the type and amount of the surfactant and the monomer/dodocane ratio on the particle morphology was studied by TEM. Finally, the releasing process of the synthesized nanoparticles was monitored by UV-vis measurement. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2848 / 2855

页数：8

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