| 水对交联壳聚糖/聚醚半互穿网络凝胶的玻璃化转变的影响 |
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| 引用本文： | 管云林,邵蕾,张影萍,刘静,姚康德. 水对交联壳聚糖/聚醚半互穿网络凝胶的玻璃化转变的影响[J]. 高分子材料科学与工程, 1999, 15(4): 139-140 |
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| 作者姓名： | 管云林 邵蕾 张影萍 刘静 姚康德 |
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| 作者单位： | 1. 天津大学应用化学系,天津,300072
2. 天津大学材料科学与工程系,天津,300072 |
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| 摘 要： | 以差示扫描量热和动态力学分析研究了交联壳聚糖／聚醚半互穿聚合物网络水凝胶中水的状态和玻璃化转变，讨论了水的含量和状态对玻璃化转变温度的影响。
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| 关 键 词： | 壳聚糖 水的状态 玻璃化转变温度 X射线衍射 |
STUDY ON THE EFFECT OF WATER ON THE GLASS TRANSITION OF THE CROSSLINKED-CHITOSAN/POLYETHER SEMI-IPN HYDROGEL |
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| Guan Yunlin,Shao Lei,Zhang Yinpin,Liu Jing,Yao Kangde. STUDY ON THE EFFECT OF WATER ON THE GLASS TRANSITION OF THE CROSSLINKED-CHITOSAN/POLYETHER SEMI-IPN HYDROGEL[J]. Polymer Materials Science & Engineering, 1999, 15(4): 139-140 |
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| Authors: | Guan Yunlin Shao Lei Zhang Yinpin Liu Jing Yao Kangde |
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| Abstract: | Water state and glass transition of the crosslinked chitosan/polyether semi IPN(Cr CS/PE semi IPN) hydrogels with various water contents were studied using DSC and DMA. The effect of water content and state on the glass transition temperature( T g) of the hydrogel was discussed. Results show that there are three states of water can exist in the hydrogel and only in the region in which the hydrogel contains only non freezing bound water, T g of the hydrogel decreases markedly as the plasticization of water. The effect of water on the crystalline structure of the semi IPN was investigated by using X ray diffraction as well. |
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| Keywords: | chitosan/polyether hydrogel water state glass transition temperature |
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