高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (2): 418.

• 研究论文 • 上一篇    

基于TiO2/SiO2溶胶的新型PET缩聚催化剂的合成

殷明1,2, 冯润财1,2, 李春成1, 管国虎1, 张栋1, 萧耀南1   

  1. 1. 北京分子科学国家实验室, 中国科学院化学研究所, 工程塑料重点实验室, 北京 100190;
    2. 中国科学院研究生院, 北京 100049
  • 收稿日期:2009-04-07 出版日期:2010-02-10 发布日期:2010-02-10
  • 通讯作者: 李春成, 男, 研究员, 博士生导师, 主要从事新型聚酯合成研究. E-mail: lichch@iccas.ac.cn
  • 基金资助:

    国家“九七三”计划项目(批准号: 2003CB615600)资助.

Synthesis of Novel Catalyst Based on TiO2/SiO2 for Poly(ethylene terephthalate)

YIN Ming1,2, FENG Run-Cai1,2, LI Chun-Cheng1*, GUAN Guo-Hu1, ZHANG Dong1, XIAO Yao-Nan1   

  1. 1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2009-04-07 Online:2010-02-10 Published:2010-02-10
  • Contact: LI Chun-Cheng. E-mail: lichch@iccas.ac.cn
  • Supported by:

    国家“九七三”计划项目(批准号: 2003CB615600)资助.

摘要:

合成了一种基于TiO2/SiO2溶胶的高活性PET缩聚催化剂, 用电子探针显微镜(EPMA)和热重分析(TGA)表征了催化剂的组分, 结果与理论值符合. X射线光电子能谱(XPS)结果证实, 催化剂中加入的己内酰胺与Ti存在配位作用, 极大地提高了催化剂的活性. 所制备的催化剂催化聚合得到的PET性能远优于用传统锑系催化剂制备的PET材料.

关键词: TiO2/SiO2溶胶; 聚对苯二甲酸乙二酯; 催化剂

Abstract:

A novel catalyst for the polycondensation of PET based on TiO2/SiO2 sol was synthesized. The composition of the catalysts was characterized by electron probe micro-analyzer(EPMA) and thermogravimetric analysis(TGA) methods. The results indicate that the composition of the catalysts can be well controlled and match well with theoretical values. X-ray photoelectron spectroscopy(XPS) results reveale that caprolactam added into the catalyst has coordinative effects with Ti and gives the catalyst ultra-high activity. The PET products catalyzed by the catalyst with caprolactam had far better properties than those synthesized using traditional antimony based catalysts.

Key words: TiO2/SiO2 sol; Poly(ethylene terephthalate); Catalyst

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