高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 330.

• 研究快报 • 上一篇    下一篇

二氧化硅胶体晶模板技术制备间规聚苯乙烯有序孔材料

阎卫东1, 李丹2,3, 容建华2, 杨振忠2   

  1. 1. 河北工业大学化工学院高分子科学与工程研究所, 天津 300130;
    2. 中国科学院化学研究所, 分子科学研究中心, 高分子物理与化学国家重点实验室, 北京 100080;
    3. 大庆石油学院石油化工系, 安达 151400
  • 收稿日期:2001-08-20 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 杨振忠(1968年出生),男,副研究员,从事介观尺度有序材料的制备和功能分散体系研究.E-mial:yangz@pplas.icas.ac.cn E-mail:yangz@pplas.icas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号:20023003)资助

Template-synthesis of Ordered Macroporous Syndiotactic Polystyrene Using Silica Colloidal Crystals

YAN Wei-Dong1, LI Dan2,3, RONG Jian-Hua2, YANG Zhen-Zhong2   

  1. 1. Institute of Polymer Scienceand Engineering, School of Chemical Engineering, Hebei University of Technology, Tianj in 300130, China;
    2. State Key Laboratory of Polymer Physics and Chemistry, Center for Molecular Science, Instituteof Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
    3. Department of Petrochemical Engineering, Daqing Petroleum Institute, Anda 151400, China
  • Received:2001-08-20 Online:2002-02-24 Published:2002-02-24

关键词: 模板合成, 间规聚苯乙烯, 有序孔材料

Abstract: A rigid silica colloidal crystal template was formed by self-assembly of the monodispersed silica dispersion prepared according to Stöber method. Within the interstitial void of the template, β-diketonate titanium complexes[(dbm)3Ti(OPh)/MAO] catalyzed polymerization of styrene was carried out to form syndiotactic polystyrene(sPS)/silica composites. The titled ordered macroporous syndiotactic polystyrene was achieved by chemical decomposition of the silica template with concentrated aqueous hydrofluoric acid, which was confirmed by SEM results. FTIR spectra indicated that all silica was removed from the composites in this study. DSCrevealed that the as prepared macroporous sPSwas significantly different from the bulk one, and the unique properties were inherent rather than from the enforcement effect by the silica template. Further investigation concerning the inherent microstrucutures about the molecular weight and its distribution, tacticity of the styrene etc . and their dependence on the confinement is in progress.

Key words: Template synthesis, Syndiotactic polystyrene, Ordered macroporous materials

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