O-羟丙基-N-月桂酰基壳聚糖的制备及其表面性能研究  

Preparation and surface performance of O- hydroxypropyl- N- lauroyl chitosan

作　　者：谭福能[1] 隋卫平[2] 

机构地区：[1]文山学院化学与工程学院,云南文山663000 [2]济南大学化学化工学院,山东济南250022

出　　处：《日用化学工业》2015年第5期252-256,278,共6页China Surfactant Detergent & Cosmetics

基　　金：云南省科技计划青年资助项目(2012FD058)

摘　　要：以壳聚糖为原料,通过定位改性的方法合成了两亲性O-羟丙基-N-月桂酰基壳聚糖(O-HP-N-LACS)。以FTIR,1HNMR和XRD对O-HP-N-LACS的结构进行了表征,通过元素分析计算出O-HP-N-LACS的取代度为20.1%。对O-HP-N-LACS溶液的表面活性进行了研究,考察了p H和Na Cl浓度对其表面活性的影响,同时从起泡性和稳泡性2个方面研究了O-HP-N-LACS溶液的泡沫性质。结果表明,O-HP-N-LACS具有一定的表面活性和泡沫性,具备了表面活性剂的基本性质。With chitosan as starting material,amphipathic O- hydroxypropyl- N- lauroyl chitosan（ O- HP-N- LACS） was prepared by orientating modification method. FTIR,1HNMR and XRD were used to characterize the chemical structure of O- HP- N- LACS. The degree of substitution（ DS） of O- HP- N-LACS was determined as 20. 1% from calculation based upon elemental analysis. Surface activity of O- HP-N- LACS solution as well as the effect of concentration of Na Cl and the p H value in the O- HP- N- LACS solution were examined. Meanwhile,foaming performance,including foaming power and foam stability were also examined. Results showed that O- HP- N- LACS displays good surface activity and foaming performance as a polymeric surfactant.

关 键 词：高分子表面活性剂 O-羟丙基-N-月桂酰基壳聚糖 定位改性 表面活性 泡沫性 

分 类 号：TQ423[化学工程]