O-羟丙基-N-月桂酰基壳聚糖的制备及其表面性能研究

doi:10.13218/j.cnki.csdc.2015.05.003

摘要/Abstract

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pH和NaCl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。

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

Abstract: 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 NaCl and the pH 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.

Key words: polymeric surfactant, O-hydroxypropyl-N-lauroyl chitosan, orientating modification, surface activity, foaming performance

中图分类号:

TQ423

谭福能, 隋卫平. O-羟丙基-N-月桂酰基壳聚糖的制备及其表面性能研究[J]. 日用化学工业, 2015, 45(5): 252-256.

TAN Fu-neng, SUI Wei-ping. Preparation and surface performance of O-hydroxypropyl-N-lauroyl chitosan[J]. China Surfactant Detergent & Cosmetics, 2015, 45(5): 252-256.

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