新型树枝状非离子表面活性剂的温度与盐效应研究  

Temperature and salt effect on the properties of novel dendritic nonionic surfactant

作　　者：张巍[1,2] 董国君[1] 杨惠[1,2] 周继柱[2] 孙晋红[1,2] 王金本[2] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001 [2]中国科学院化学研究所中国科学院胶体,界面与化学热力学重点实验室,北京100190

出　　处：《应用化工》2009年第5期625-628,631,共5页Applied Chemical Industry

基　　金：国家863项目(2006AA09Z305)

摘　　要：以3.0代聚酰胺-胺(PAMAM G-3.0)为起始剂,合成了一种新型树枝状非离子表面活性剂。通过表面张力与稳态荧光法研究了其在水溶液和无机盐溶液中的表面性质与聚集行为,并考察了温度对其性质的影响。结果表明,随着温度的升高,表面活性剂的表面张力逐渐降低,但在研究的温度范围内,临界胶束浓度(CMC)的变化不大。当加入质量浓度为1.0%的NaCl、NaBr及Na2SO4时,均使其表面张力增大;而3种无机盐的加入,对表面活性剂CMC的影响不大。With 3.0 G poly（amido-amine） （PAMAM G-3.0） as the initiator, a novel dendritic nonionic surfactant was synthesized. Surface properties and aggregation behaviors, both in aqueous and inorganic salt solutions were studied by surface tension and steady state fluorescence measurements. The effect of temperature on the surface properties was investigated. The results showed that, with the increase of temperature,the surface tension value was decreased but critical micelle concentration （CMC） values were not changed a lot. In the case of each inorganic salt, NaCl, NaBr or Na2SO4, at the concentration of 1.0% ,the surface tension value increased,but the CMC values changed little.

关 键 词：树枝状大分子 非离子表面活性剂 温度效应 盐效应 

分 类 号：O657.31[理学—分析化学]