| 含偶氮苯生色团的短梗霉多糖衍生物的制备及性质研究 |
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| 引用本文： | 焦永华,张丽梅,姜振华. 含偶氮苯生色团的短梗霉多糖衍生物的制备及性质研究[J]. 高等学校化学学报, 2004, 25(2): 289-291 |
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| 作者姓名： | 焦永华 张丽梅 姜振华 |
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| 作者单位： | 吉林大学化学学院, 长春 130023 |
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| 基金项目： | 教育部优秀青年教师资助计划资助 |
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| 摘 要： | 短梗霉多糖(Pullulan)是由出芽短梗霉(Aureobacidium pullulans)合成的一种细胞外水溶性大分子中性多糖。该多糖具有独特的物理化学和生物学特性，因此被广泛用于医药制造、食品包装和化妆品工业等众多领域，由于偶氮苯及其衍生物在紫外光的照射下会发生反式-顺式结构变化，而经可
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| 关 键 词： | 短梗霉多糖 偶氮苯 光致变色 |
| 文章编号： | 0251-0790(2004)02-0289-03 |
| 收稿时间： | 2003-02-25 |
Studies on Preparation and Property of Azobenzene-contained Pullulan Derivatives |
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| JIAO Yong-Hua,ZHANG Li-Mei,JIANG Zhen-Hua. Studies on Preparation and Property of Azobenzene-contained Pullulan Derivatives[J]. Chemical Research In Chinese Universities, 2004, 25(2): 289-291 |
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| Authors: | JIAO Yong-Hua ZHANG Li-Mei JIANG Zhen-Hua |
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| Affiliation: | College of Chemistry, Jilin University, Changchun 130023, China |
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| 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 1 H 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 H_2O or DMSO, the solubility of these products in common organic solvent increased greatly. |
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| Keywords: | Pullulan Azobenzene Photochromism |
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