[Langmuir] Synthesis and properties study of the uniform nonspherical styrene/methacrylic acid copolymer latex particles
作者：Wenqin Wang,* Guohong Ren, Yanqiong Yang, Wujin Cai, and Tao Chen*
关键字：nonspherical latex particle; emulsifier-free polymerization; template-assisted method
论文来源：期刊
具体来源：Langmuir, 2015, 31, 105?109
发表时间：2015年
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 multi-step 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-shell nonspherical functional materials, such as poly(St-co-PMAA)@SiO2, 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.