高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (1): 148.

• 论文 • 上一篇    下一篇

包覆Fe2O3超微粒的苯乙烯/丙烯酸/丙烯酸丁酯核-壳型复合共聚物的性能研究

陈平1, 杜惠2, 刘凤歧2, 李铁津2, 汤心颐2   

  1. 1. 抚顺石油学院材料科学与技术研究所, 抚顺, 113001;
    2. 吉林大学化学系, 长春, 130023
  • 收稿日期:1996-09-18 出版日期:1998-01-24 发布日期:1998-01-24
  • 通讯作者: 汤心颐
  • 作者简介:陈平,女,35岁,硕士,讲师.
  • 基金资助:

    国家自然科学基金资助课题.

The Properties of St/AA/BA Core-shell Composite Encapsulated-Fe2O3 Nanoparticles

CHEN Ping1, DU Hui2, LIU Feng-Qi2, LI Tie-Jin2, TANG Xin-Yi2   

  1. 1. The Materials Science & Technology Research Institute, Fushun Petroleum Institute, Fushun, 113001;
    2. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1996-09-18 Online:1998-01-24 Published:1998-01-24

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摘要： 对采用种子乳液聚合法合成的包覆Fe2O3超微粒的苯乙烯/丙烯酸/丙烯酸丁酯(St/AA/BA)核-壳型复合共聚物材料进行玻璃化温度测试,结果表明,加入Fe2O3超微粒,使复合共聚物的玻璃化温度显著降低.对复合共聚物的流变行为研究表明,复合共聚物的非牛顿指数均小于1,且随着Fe2O3含量增加,非牛顿性增强,表观粘度下降,粘流活化能降低.

关键词: 包覆Fe2O3, St/AA/BA核-壳型复合共聚物, 玻璃化温度, 流变性能

Abstract: Fe2O3 nanoparticles were encapsulated in the core-shell composite copolymers of St/AA/BA (styrene/acrylic acid/butyl acrylate) by seed emulsion polymerization process.The influence of Fe2O3 on rheological behavior and glass transition temperature (Tg) of St/AA/BA core-shell composite copolymer was discussed. The result of DSC showed that the addition of Fe2O3 nanoparticles could decrease Tg for the composite copolymer. According to the rheological properties, the core-shell copolymers were all pseudoplastics and their nonNewtonian index was less than 1. The viscosity and △E decrease with the increase of the Fe2O3 content.

Key words: Encapsulating Fe2O3, St/AA/BA core-shell composite copolymer, Glass transition temperature, Rheological properties

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