甲壳素交联改性制备超级保水凝胶  

Preparation of Super Water Reservoir Gel from Deacetylated Chitin by Crosslinking-Modification

作　　者：杨丹[1] 刘毅[1] 何兰珍[1] 

机构地区：[1]湛江海洋大学理学院,广东湛江524088

出　　处：《石油化工》2003年第2期133-138,共6页Petrochemical Technology

基　　金：广东省教育厅自然科学研究项目(0151)。

摘　　要：甲壳素脱乙酰化反应后,用以甲醛为主体配制而成的交联剂进行交联改性,制得对蒸馏水保水值达1200～1500倍、对自来水保水值大于500倍的超级保水凝胶。其用量最佳配比为壳聚糖0 1g/1%HAc7ml/交联剂3 5ml/增强剂0 5～0 7ml。从Schiff碱反应机理,结合红外光谱分析,提出甲醛交联壳聚糖的交联键结构。Super water reservoir gel was prepared by deacetylating chitin and subsequent modifying with crosslinking agent chiefly formalin.The water maintenance of gel was 1000～1500 times in case of distilled water and more than 500 times in case of tape water.The preparation formulation of gel was:chitosan/1%HAc/crosslinking agent/reinforcing agent=0 1g/7ml/3 5ml/0 5～0 7ml.The crosslink between the molecules of chitosan was derived from the mechanism of Schiff base reaction and IR spectra as:

关 键 词：甲壳素 交联改性 制备 超级保水凝胶 壳聚糖 

分 类 号：TQ427.26[化学工程]