酸处理对制备中空乳胶粒子的影响

• 作 者: 郝冬梅 刘成岑 施凯 唐小真
• 机 构: 上海交通大学化学化工学院!上海200240,太原理工大学化学工程系!太原,太原理工大学化学工程系!太原,上海交通大学化学化工学院!上海200240
• 出 处: 应用化学
• 发表日期: 2000年04期
• 关键词: 聚苯乙烯-丙烯酸丁酯-甲基丙烯酸共聚物 中空结构乳胶粒子 形态 酸处理

The styrene(St) butyl acrylate(BA) copolymer was first prepared as seed emulsion and the final latex of St BA MA was then obtained from it with methyl acrylate(MA). The hollow polymer particles were obtained from poly(St BA MA) in the presence of dodecyl sulfonic sodium through alkaline and acid treatments. In this paper the effects of pH value, temperature and time of acid treatment on the hollow structure of polymer particles were investigated. The results showed that the largest hollow size can be obtained when acid treatment conditions were: pH 2 5, 85 ℃ and 3 hours.

The styrene (St) butyl acrylate (BA) copolymer was first prepared as seed emulsion and the final latex of St BA MA was obtained from it with methyl acrylate (MA). The hollow polymer particles were obtained from poly (St BA MA) in the presence of dodecyl sulfonic sodium through alkaline and acid treatments. In this paper the effects of pH value, temperature and time of acid treatment on the hollow structure of polymer particles were investigated. acid treatment conditions were: pH 2 5, 85 ° C and 3 hours.