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以差示扫描量热(DSC)和动态力学分析(DMA)研究了交联壳聚糖/聚醚半互穿聚合物网络(Cr-CS/PEse-mi-IPN)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。结果表明,在此水凝胶中存在3种状态水,而水凝胶的玻璃化转变温度随凝胶中不冻结水的含量增大而降低显示水的增塑作用。且用X射线衍射研究水对此半互穿网络结晶结构的影响。
The state of water in the crosslinked chitosan / polyether semi-interpenetrating polymer network (Cr-CS / PEse-mi-IPN) hydrogels was investigated by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) And glass transition, the effect of water content and state on the glass transition temperature was discussed. The results show that there are three kinds of state water in the hydrogel, and the glass transition temperature of the hydrogel decreases with the increase of the content of the non-freezing water in the gel to show the water plasticization effect. The influence of water on the crystal structure of the semi-IPN was investigated by X-ray diffraction.