Facile Fabrication of Hybrid Hollow Microspheres via in Situ Pickering Miniemulsion Polymerization

被引：8
|
作者：
Zhang, Jianan [1 ]
Lin, Jizhi
Wu, Bo
Yang, Beibei
Wu, Mingyuan
Yang, Wenlong
Wu, Qingyun
Yang, Jianjun
机构：
[1] Anhui Univ, Sch Chem & Chem Engn, Hefei 230039, Peoples R China
来源：
CHEMISTRY LETTERS | 2012年 / 41卷 / 09期
基金：
中国国家自然科学基金;
关键词：
PARTICLES; EMULSIONS; WATER;
D O I：
10.1246/cl.2012.970
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hybrid hollow microspheres have been fabricated successfully via miniemulsion polymerization using the in situ formed and modified nanosilica particles as Pickering emulsifier. The hydrolysis and condensation reactions of tetraethoxysilane (TEOS) take place to form nanosilica particles which are then partially modified by oil-soluble 3-(trimethoxysilyl)propyl methacrylate (MPS) at the oil/water interface under basic conditions. After the miniemulsification process, Pickering miniemulsions were stabilized by the in situ nanosilica particles. Hybrid hollow microspheres are obtained with silica nanoparticles closely packed on the surface of polymer microspheres. The results showed that both the weight ratios of TEOS/styrene and MPS/TEOS have great effects on the production of stable Pickering emulsion and then the morphologies of the obtained hybrid microspheres.
引用
收藏
页码：970 / 971
页数：2
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