壳聚糖与苯甲醛缩合反应的研究  

Study on Chitosan Condensation with Benzaldehyde

作　　者：袁春桃[1] 蒋先明[2] 谭凤姣[1] 刘平[1] 

机构地区：[1]湖南科技大学化学系,湖南湘潭411201 [2]广西师范大学化学化工系,广西桂林541004

出　　处：《化工技术与开发》2005年第3期4-5,共2页Technology & Development of Chemical Industry

基　　金：湖南省"十五"重点学科(湘教通[2001]179号)

摘　　要：利用壳聚糖C2位上活泼氨基与苯甲醛发生缩合反应制备Schiff碱,通过L9(34)正交实验,研究了缩合反应的最佳条件:壳聚糖在3%的乙酸溶液中溶胀30min,pH=5.0,70℃时反应4h,反应物配比[n(壳聚糖)∶n(苯甲醛)]=1∶6,缩合率达86.73%。<Abstrcat> The orthogonal design had been employed to study the reaction conditions of chitosan(CTS) condensing with benzaldehyde. The optimum reaction conditions were as follows: chitosan swelling in 3% HAc 30 min, n(chitosan)/n(benzaldehyde)=1:6, pH=5.0, reaction time was 4h at 70℃,the yield of resin could reached 86.73%.

关 键 词：壳聚糖 苯甲醛 缩合反应 SCHIFF碱 

分 类 号：O636.1[理学—高分子化学]