Abstract
Several methods consisting of two or multi-step processes have been so far proposed for the preparation of sub- and micrometer-sized hollow polymer particles. In this study, we proposed an innovative one-step synthesis of the hollow polymer particles by applying microsuspension copolymerization of styrene and methyl acrylate with Mg(OH)2 as dispersant. In this method, Mg(OH)2 acted not only as dispersant, which covered densely at the surface of the monomer droplets, but also caused hydrolysis reaction of MA unit within styrene-methyl acrylate copolymer particles during the polymerization due to giving alkaline pH in the aqueous medium. It is also important that methyl acrylates are predominantly polymerized over styrene at the initial stage of the microsuspension copolymerization.
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Acknowledgements
The authors would like to thank Ms. Nobuko Yamashita for the cooperation to carry out the kinetic simulation of bulk copolymerization of styrene and methyl acrylate using the PREDICI software. The research was financially supported by the Primary Research and Development Plan of Jiangsu Province (BE2016183) and Natural Science Foundation of Jiangsu Province for Youth (BK20160960).
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Yang, Zk., Wang, Zl., Mao, Zm. et al. Innovative one-step synthesis of hollow polymer particles by microsuspension polymerization of styrene and methyl acrylate with Mg(OH)2 as dispersant. Colloid Polym Sci 295, 565–572 (2017). https://doi.org/10.1007/s00396-017-4045-5
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DOI: https://doi.org/10.1007/s00396-017-4045-5