Synthesis of Raspberry-Like Poly(styrene鈥揼lycidyl methacrylate) Particles via a One-Step Soap-Free Emulsion Polymerization Process Accompanied by Phase Separation

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• 作者：Xinlong Fan ; Xiangkun Jia ; Hepeng Zhang ; Baoliang Zhang ; Chunmei Li ; Qiuyu Zhang
• 刊名：Langmuir
• 出版年：2013
• 出版时间：September 17, 2013
• 年：2013
• 卷：29
• 期：37
• 页码：11730-11741
• 全文大小：913K
• 年卷期：v.29,no.37(September 17, 2013)
• ISSN：1520-5827

文摘

We herein report a facile method to prepare raspberry-like poly(styrene鈥揼lycidyl methacrylate) [P(S鈥揋MA)] particles with controllable structure via a one-step soap-free emulsion polymerization process accompanied by phase separation. In this method, corona particles with a size of 10鈥?0 nm were produced in situ in the later polymerization stage by the migrating of S-enriched polymers from GMA-enriched core particles. The size of the corona particles and the roughness of the raspberry-like particles can be easily controlled by adjusting the amount of styrene (S), glycidyl methacrylate (GMA), and divinylbenzene (DVB). The structure of raspberry-like P(S鈥揋MA) particles was confirmed by transmission electron microscopy, scanning electron microscopy, and atomic force microscopy. A possible mechanism of the formation of raspberry-like particles was proposed.