Synthesis and Properties Study of the Uniform Nonspherical Styrene/Methacrylic Acid Copolymer Latex Particles

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• 作者：Wenqin Wang ; Guohong Ren ; Yanqiong Yang ; Wujin Cai ; Tao Chen
• 刊名：Langmuir
• 出版年：2015
• 出版时间：January 13, 2015
• 年：2015
• 卷：31
• 期：1
• 页码：105-109
• 全文大小：404K
• ISSN：1520-5827

文摘

A facile method to prepare the nonspherical amphiphilic random copolymer of poly(styrene-co-methacrylic acid) (poly(St-co-PMAA)) latex particles with well-defined shapes and high yields by one-step batch emulsifier-free polymerization was demonstrated. In our strategy, only varying the molar ratio of styrene (St) to methacrylic acid (MAA), no seed-particles, no cross-linker, and no multistep control procedures were needed. Due to the presence of carboxyl groups on the surface of (poly(St-co-PMAA) latex particles, these latex particles can be used as templates for fabricating core鈥搒hell nonspherical functional materials, such as poly(St-co-PMAA)@SiO₂ and poly(St-co-PMAA)@polypyrrole). The corresponding nonspherical hollow structures (SiO₂ and polypyrrole) could be obtained after removal of the templates. In addition, poly(St-co-PMAA) latex particles exhibit interesting morphologies in ethanol.