超声波法制备两性壳聚糖衍生物及其抗菌性能OACSTPCD
Synthesis and antimicrobial activity of amphoteric chitosan assisted with ultrasonic irradiation
应用超声波辐射的方法,使壳聚糖和氯乙酸在NaOH-乙醇体系中反应,制备O-羧甲基壳聚糖(OCMC).测定了四因素三水平正交试验中的羧甲基取代度(DS)和氨基(N2-)保留量(％),优化了实验条件.选择较好的OCMC,以乙醇为溶剂,在超声波辐射下,通过和2,3-环氧丙基三甲基氯化铵(GTA)反应,合成具有抗菌性能的两性的季铵化O-羧甲基壳聚糖(QOCMC),并测定其季铵化取代度.红外光谱仪表征了其峰值的变化,扫描电镜表征其晶态结构的变化.通过对大肠…查看全部>>
O-carboxymethyl chitosan (OCMC) was synthesized by ultrasonic irradiation with chitosan and chloroace-tic acid in NaOH-ethanol. The degree of substitution (DS) of carboxymethyl and amino retained amount (NH2%) were studied under the orthogonal experiments of four factors at three different levels and the reaction condition was optimized. Then quaternary ammonium group was introduced by the reaction of preferable OCMC with glycidyl tri-rnethylammonium (GTA) …查看全部>>
李亚林;王琛;赵航;虞登峰;肖叶群
西安工程大学纺织与材科学院,陕西西安710048西安工程大学纺织与材科学院,陕西西安710048西安工程大学纺织与材科学院,陕西西安710048西安工程大学纺织与材科学院,陕西西安710048西安工程大学纺织与材科学院,陕西西安710048
轻工纺织
O-羧甲基壳聚糖季铵化超声波辐射抗菌性能
O-carboxyrnethyl chitosan quaternization ultrasonic irradiation antimicrobial activity
《纺织高校基础科学学报》 2012 (1)
117-120,4