三甲基壳聚糖季铵盐水凝胶的制备及性能

化工进展

三甲基壳聚糖季铵盐水凝胶的制备及性能

林佳福，辛梅华，李明春，祝二斌

华侨大学材料科学与工程学院，环境友好功能材料教育部工程中心，福建厦门 361021

出版日期:2011-10-05 发布日期:2011-10-05

Preparation and properties of N,N,N-trimethyl chitosan quaternary ammonium hydrogel

LIN Jiafu，XIN Meihua，LI Mingchun，ZHU Erbin

College of Materials Science and Engineering，Huaqiao University，Engineering Research Center of Environment-Friendly Functional Materials，Ministry of Education，Xiamen 361021，Fujian，China

Online:2011-10-05 Published:2011-10-05

摘要/Abstract

摘要：

采用反应活性强和交联条件温和的二乙烯基砜为交联剂，制备了N,N,N-三甲基壳聚糖季铵盐水凝胶（TMCG）并研究了TMCG的溶胀行为、水的状态和分布以及力学性能等。结果表明，TMCG在水中溶胀迅速，平衡溶胀度达40倍，并且具有离子响应性；水分子在TMCG中以自由水、可冻结的结合水和非冻结的结合水三种形式存在，其非冻结的结合水含量随交联剂浓度的增加而增大。TMCG具有良好的力学性能，拉伸强度达13.8 MPa，断裂伸长率达135.3%。

Abstract:

N,N,N-trimethyl chitosan quaternary ammonium hydrogel（TMCG）was prepared in the mild condition by using reactive divinyl sulfone（DVS）as a cross-linking agent. The swelling behavior and mechanical properties of TMCG were investigated，together with the water state and distribution in swelling TMCG. The results show that TMCG is an ionic responsive hydrogel with fast swelling rate and high swelling ratio，the maximum equilibrium swelling ratio approaches to 40 times. TMCG has significant ionic responsiveness. Water molecules exist in the TMCG by three different forms of state as free water，freezing bound water，non-freezing bound water，and non-freezing bound water content increases with the increase of cross-linking agent. TMCG has good mechanical properties，the maximum tensile strength is up to 13.82 MPa，and the highest elongation at break is up to 135.3%.

林佳福，辛梅华，李明春，祝二斌. 三甲基壳聚糖季铵盐水凝胶的制备及性能[J]. 化工进展.

LIN Jiafu，XIN Meihua，LI Mingchun，ZHU Erbin. Preparation and properties of N,N,N-trimethyl chitosan quaternary ammonium hydrogel[J]. Chemical Industry and Engineering Progree.