当前位置: 首页 > 文章 > 戊二醛交联对壳聚糖/PVA共混膜结构和性能的影响 浙江海洋学院学报(自然科学版) 2005,24 (2) 126-129+142
Position: Home > Articles > Influence of Moist Heat Treatment or Cross Linking on the Water Resistance Properties and Structure of Chitosan/PVA Blend Films Journal of Zhejiang Ocean University(Natural Science) 2005,24 (2) 126-129+142

戊二醛交联对壳聚糖/PVA共混膜结构和性能的影响

作  者:
朱华跃;肖玲
单  位:
武汉大学资源与环境科学学院
关键词:
壳聚糖;PVA;湿热处理;结构表征
摘  要:
用流延法成功制备聚乙烯醇-壳聚糖共混膜,然后进行戊二醛交联处理。用红外光谱﹑X射线衍射﹑扫描电镜对经过湿热处理和交联的共混膜进行了表征,测试了膜的力学性能和吸水性。结果表明,经戊二醛交联的膜结晶被部分破坏。共混膜的吸水性实验表明,壳聚糖/PVA共混膜的pH敏感性可通过控制交联剂浓度改变。该法可以在壳聚糖/PVA共混膜控释体系的后处理方面得到应用。
译  名:
Influence of Moist Heat Treatment or Cross Linking on the Water Resistance Properties and Structure of Chitosan/PVA Blend Films
作  者:
ZHU Hua-yue1,2, XIAO Ling1 (1.College of Resources and Environmental Sciences, Wuhan University,Wuhan 430072; 2.School of Life Science, Pharmaceutical and Chemical Engineering,Taizhou University,Linhai 317000,China )
关键词:
chitosan;PVA;moist heat treatment;structure characterization;water resistance
摘  要:
Chitosan/PVA blend films,prepared successfully by solution method,were cross-linked with glutaraldehyde as cross-linker.The films were studied for the intermolecular interactions by Fourier transform infrared (FT-IR)spectroscopy , for the crystalline by X-ray diffraction. The properties of films such as the mechanical properties, the water adsorb percent in different pH solutions were measured. As shown in the XRD, cross-linking chitosan/PVA blend films with glutaraldehyde had been destroyed and had a smaller swelling degree.pH sensitivity of the chitosan /PVA blend films can be changed by the concentration of the cross-linking agent .

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