高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (8): 1425.

• 研究快报 • 上一篇    下一篇

原位傅里叶变换红外光谱跟踪等规聚丙烯在升温过程中的构象变化

朱新远1, 方亚鹏1, 李勇进1, 颜德岳1, 竺品芳2, 路庆华2   

  1. 1. 上海交通大学化学化工学院高分子材料研究所, 上海 200240;
    2. 上海交通大学分析测试中心, 上海 200030
  • 收稿日期:2000-12-24 出版日期:2001-08-24 发布日期:2001-08-24
  • 通讯作者: 颜德岳(1937年出生),男,教授,博士生导师,主要从事高分子化学与物理研究.
  • 基金资助:

    国家重点基础研究专项经费(批准号:G1999064800)资助Bruker公司提供了部分资助

In-situ FTIR Spectroscopic Study on the Conformational Change of Isotactic Polypropylene upon Heating

ZHU Xin-Yuan1, FANG Ya-Peng1, LI Yong-Jin1, YAN De-Yue1, ZHU Pin-Fang2, LU Qing-Hua2   

  1. 1. Instituteof Polymer Materials, College of Chemistry and Chemical Technology, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200030, China
  • Received:2000-12-24 Online:2001-08-24 Published:2001-08-24

PDF (PC)

被引次数

19

关键词: 等规聚丙烯, 傅里叶变换红外光谱, 构象

Abstract: The experimental data obtained from fast heating FTIRspectroscopy have confirmed that a conformational change occurs at about 135 ℃ for semicrystalline iPP. Based on the results of density and WAXDmeasurements, it can be inferred that the conformational change occurring at 135 ℃ comes from the disordering of helical sequences in non-crystalline phase, which is further corroborated by the FTIRstudy on the chloride polypropylene.

Key words: Isotactic polypropylene, FTIR spectroscopy, Conformation

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