超声辐射下非均相甲壳素脱乙酰化反应动力学  

Heterogeneous deacetylation reaction kinetics of chitin under ultrasonic irradiation

作　　者：张翠荣[1] 贾振宇[1] 谢华飞[1] 

机构地区：[1]仲恺农业工程学院化学化工学院,广东广州510225

出　　处：《化工进展》2011年第9期2021-2025,共5页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(20776164);广东省科技攻关(2010B011000007)项目

摘　　要：在超声辐射条件下进行了甲壳素非均相脱乙酰化反应动力学研究。结果表明,超声辐射条件下,甲壳素的脱乙酰度明显提高,反应过程符合准一级动力学关系,反应控制为扩散控制,其表观活化能为3.45 kJ/mol。The heterogeneous deacetylation reaction kinetics of chitin was studied under ultrasonic irradiation.The results indicated that under ultrasonic irradiation,the degree of deacetylation of chitin was improved dramatically,and the reaction process of deacetylation reaction followed a pseudo-first order kinetic model.The reaction was diffusion controlled,and its apparent activation energy was E=23.45 kJ/mol.

关 键 词：甲壳素 动力学 活化能 超声辐射 非均相 

分 类 号：O636.1[理学—高分子化学]