Production of submicron-sized multihollow polymer particles having high transition temperatures by the stepwise alkali/acid method |
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| Authors: | M Okubo A Ito A Hashiba |
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| Institution: | (1) Department of Chemical Science and Engineering Faculty of Engineering, Kobe University, Rokko, Nada, 657 Kobe, Japan |
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| Abstract: | Submicron-sized multihollow styrene-methacrylic acid (92.6/7.4, molar ratio) copolymer particles having high transition temperature above 100°C were produced by using the stepwise alkali/acid method proposed by the authors. The original particles were prepared by emulsion copolymerization of styrene and methacrylic acid. The effects of pH, temperature and time in the alkali treatment process as the first step on the multihollow structure were clarified under the same acid treatment conditions.Part CLII of the series  Studies on Suspension and Emulsion |
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| Keywords: | Multihollow particles emulsion polymerization morphology carboxyl group transition temperature |
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