应用化学 ›› 1988, Vol. 0 ›› Issue (6): 53-56.

• 研究简报 • 上一篇    下一篇

高顺式聚丁二烯的低温红外光谱

何永钜, 景遐斌, 王佛松   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1987-12-26 修回日期:1988-04-16 出版日期:1988-12-10 发布日期:1988-12-10

LOW TEMPERATURE IR SPECTRA OF CIS-POLYBUTADIENE

He Yongju, Jing Xiabin, Wang Fosong   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1987-12-26 Revised:1988-04-16 Published:1988-12-10 Online:1988-12-10

摘要: 在聚丁二烯(PBD)的微结构分析中人们多采用738cm-1吸收带作为顺式结构分析峰[1,2],而该吸收带随分子链构象和微结构序列分布的变化却未曾有详细研究。本文考察了高顺式PBD结晶前后的红外光谱变化,特别是738cm-1带的变化,并用分子链构象的变化给予了解释。

关键词: 顺式聚丁二烯, 红外光谱, 聚丁二烯的微结构

Abstract: IR spectra of high cis-rolybutadiene were measured at both room temperature and -150℃. Spectral changes related to the crystallization were observed. The profile change of the 738 cm-1 band was attributed to the change in the molecular chain conformation, especially to the change in the internal totational angle of the single bonds adjacent to the C=C double bonds.

Key words: Cis-polybutadiene, Infrared spectrum, Microstructure of polybutadiene