摘要
以羟乙基壳聚糖和脱氢枞基缩水甘油醚为原料制备了非离子高分子表面活性剂(2-羟基-3-脱氢枞氧基)丙基羟乙基壳聚糖(DAGE-g-HECTS),测定了FT-IR、~1H NMR和接枝度(DG),采用表面张力法研究了DAGE-gHECTS的表面活性及其随DG的变化,以DAGE-g-HECTS为稳定剂时的苯-水乳液体系的稳定时间评价了其乳化性能。结果表明,反应成功制备了目标产物;随着DG从17.78%提高至44.31%,DAGE-g-HECTS水溶液的临界胶束浓度从1.080 6降至0.247 2 g/L,最低表面张力稳定在36.2 mN/m左右;DAGE-g-HECTS对苯-水乳液体系的稳定时间随DG的增大而延长,DG为23.16%的DAGE-g-HECTS对苯-水乳液体系的稳定时间为348 s,优于AEO-9为稳定剂时的327 s,DG为40.45%的DAGE-g-HECTS对苯-水乳液的稳定时间为712 s,优于Tween-60为乳液稳定剂时的653 s。
A nonionic polymeric surfactant（ 2-hydroxyl-3-dehydrofiroxy） propyl hydroxyethyl chitosan（DAGE-g-HECTS） was prepared with the raw materials of dehydroabietyl glycidyl ether and N,O-hydroxyethyl chitosan. FT-IR、^1H NMR and grafting degree（ DG） of DAGE-g-HECTS was determined.The surface activity of DAGE-g-HECTS and its variation with the DG were investigated by using surface tension method. The emulsifying property of DAGE-g-HECTS was evaluated according to the stability time of emulsion composed of water and benzene with DAGE-g-HECTS as emulsifying agent. Results indicate that the target product is successfully prepared. The critical micelle concentration（ cmc） of DAGE-g-HECTS in aqueous solution decreases from 1. 080 6 to 0. 247 2 g/L with the increase of DG from 17. 78% to44. 31%,but the minimum surface tension（ γmin of DAGE-g-HECTS can reach approximately 36. 2 mN/m in aqueous solution. The stability time of emulsion composed of water and benzene with DAGE-g-HECTS as emulsifying agent extends with the increase of DG. When the DG of DAGE-g-HECTS is 23. 16%,the stability time of emulsion is 348 s,which is longer than that with AEO-9 as emulsifying agent（327 s）,and when the DG of DAGE-g-HECTS is 40. 45%,the stability time of emulsion is 712 s,which is longer than that with Tween-60 as emulsifying agent（653 s）.
作者
王婷
章婷婷
蔡照胜
桑淑敏
何建玲
汪艺宁
WANG Ting;ZHANG Ting-ting;CAI Zhao-sheng;SANG Shu-min;HE Jian-ling;WANG Yi-ning(School of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng, Jiangsu 224051, China)
出处
《日用化学工业》
CAS
CSCD
北大核心
2018年第4期196-200,共5页
China Surfactant Detergent & Cosmetics
基金
国家自然科学基金资助项目(31170543)
江苏省生物质能源与材料重点实验室开放基金资助项目(JSBEM201607)
江苏省精细石油化工重点实验室开放课题基金资助项目(KF1704)
