Hollow microspheres with covalent-bonded colloidal and polymeric shell by Pickering emulsion polymerization

被引：29
作者：
Yin, Dezhong [1 ]
Zhang, Qiuyu [1 ]
Yin, Changjie [1 ]
Zhao, Xingbo [1 ]
Zhang, Hepeng [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Sci, Xian 710072, Peoples R China
来源：
POLYMERS FOR ADVANCED TECHNOLOGIES | 2012年 / 23卷 / 03期
基金：
中国国家自然科学基金;
关键词：
hollow microspheres; Pickering emulsion polymerization; phase separation; FABRICATION; COLLOIDOSOMES; PARTICLES;
D O I：
10.1002/pat.1865
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Hollow microspheres with SiO2/polymer binary shell were fabricated from Pickering emulsion stabilized solely by methacryloxypropyltrimethoxysilane-modified SiO2 particles, and were characterized by optical microscopy, scanning electron microscopy, Fourier transformation infrared spectrum, thermogravimetric analysis (TGA), and energy dispersive X-ray spectroscopy. The microspheres were templated by the Pickering droplets and the inner structure was affect by the proportion of crosslinking reagent. TGA result indicated that 60.3% of polymer in the shell was connected with SiO2 by covalent bond which was formed by copolymerization of styrene and the reactive C=C group on SiO2 stabilizer. Copyright (C) 2011 John Wiley & Sons, Ltd.
引用
收藏
页码：273 / 277
页数：5
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