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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (9): 1107-1114. 上一篇    下一篇

研究论文

干酪素存在下丙烯酸丁酯的乳液聚合及聚丙烯酸丁酯/干酪素核壳结构乳胶粒的形成

朱晓丽，吴莉莉，孔祥正*   

  1. (济南大学化学化工学院 济南 250022)
  • 投稿日期:2010-10-27 修回日期:2010-12-31 发布日期:2011-01-06
  • 通讯作者: 孔祥正 E-mail:xzkong@ujn.edu.cn
  • 基金资助:

    聚硅氧烷-聚氨酯-聚丙烯酸酯三元复合乳液

Emulsion Polymerization of Butyl Acrylate in the Presence of Casein and Formation of Polybutyl Acrylate-Casein Core-shell Latex Particles

ZHU Xiao-Li, WU Li-Li, KONG Xiang-Zheng   

  1. (College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022)
  • Received:2010-10-27 Revised:2010-12-31 Published:2011-01-06

PDF

1055

被引次数

10

将丙烯酸丁酯(BA)在干酪素(CA)存在下使用异丁基过氧化氢(TBHP)为引发剂, 采用无皂乳液聚合方法, 通过接枝聚合制备了直径在150 nm左右具有核壳结构PBA/CA纳米复合微粒. 探讨了反应温度、引发剂用量、BA和CA质量比等条件对单体转化率、接枝效率和乳胶粒粒径及其分布的影响, 确定了制备此类复合乳胶粒的实验条件并对乳胶粒的形成机理进行了讨论.

关键词: 干酪素, 丙烯酸丁酯, 氧化还原引发, 接枝聚合物, 核壳结构乳胶粒

Latex particles with core-shell structure of polybutyl acrylate (PBA)/casein (CA) were prepared through emulsion polymerization of BA in the presence of CA without any surfactant and with tert-butyl hydroper oxide (TBHP) as the initiator. Influences of polymerization temperature, initiator amount and ratio of BA/CA on monomer conversion, PBA grafting and particles size etc. were studied. The preparation process for PBA/CA core/shell particles was optimized, and the mechanisms of particle formation were discussed.

Key words: casein, butyl acrylate, redox initiation, graft polymer, core-shell latex particle