高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (2): 289.

• 研究简报 • 上一篇    下一篇

含偶氮苯生色团的短梗霉多糖衍生物的制备及性质研究

焦永华, 张丽梅, 姜振华   

  1. 吉林大学化学学院, 长春 130023
  • 收稿日期:2003-02-25 出版日期:2004-02-24 发布日期:2004-02-24
  • 通讯作者: 姜振华(1961年出生),男,教授,博士生导师.从事多相高分子材料研究.E-mail;jiangzhenhua@mail.jlu.edu.cn E-mail:jiangzhenhua@mail.jlu.edu.cn
  • 基金资助:

    教育部优秀青年教师资助计划资助

Studies on Preparation and Property of Azobenzene-contained Pullulan Derivatives

JIAO Yong-Hua, ZHANG Li-Mei, JIANG Zhen-Hua   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2003-02-25 Online:2004-02-24 Published:2004-02-24

关键词: 短梗霉多糖, 偶氮苯, 光致变色

Abstract: Azobenzene-modified pullulan with different substitution degrees were prepared by changing feed molar ratio of 4-phenylazophenyloxybutyrate acid to pullulan. The structure of the modified pullulan were characterized by 1H NMR and FTIR spectroscopies. The substitution degrees were determined by elemental analysis and UV-Vis spectra. Photochromism property in solution was investigated by UV-Vis spectroscopy, isomerization behavior of azobenzene moeties of polymer under irradiation at 350 nm is obvious. After 4 min irradiation, trans isomer of sample 3 change into cis isomer completely. Furthermore, unlike pullulan, which is soluble only in H2O or DMSO, the solubility of these products in common organic solvent increased greatly.

Key words: Pullulan, Azobenzene, Photochromism

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