Hollow microspheres with covalent-bonded colloidal and polymeric shell by Pickering emulsion polymerization
作者:Dezhong Yin, Qiuyu Zhang*, Changjie Yin, Xingbo Zhao and Hepeng Zhang
关键字:hollow microspheres;Pickering emulsion polymerization;phase separation
论文来源:期刊
具体来源:Polymers for Advanced Technologies
发表时间:2011年
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.
http://onlinelibrary.wiley.com/doi/10.1002/pat.1865/full