表面张力法研究6-OTs-β-CD-CTAC超分子体系  

Study on Supramolecules of 6-OTs-β-CD-CTAC by Surface Tension Measurement

作　　者：孙延春[1] 张英[1] 

机构地区：[1]四川理工学院化学与制药工程学院,四川自贡643000

出　　处：《安徽理工大学学报（自然科学版）》2009年第1期39-42,共4页Journal of Anhui University of Science and Technology:Natural Science

摘　　要：用表面张力法研究了288K时6-OTs-β-CD与十六烷基三甲基氯化铵(CTAC)形成的超分子包络物及CTAC的表观临界胶束浓度(CMC*)与6-OTs-β-CD浓度的关系。研究发现,CTAC与6-OTs-β-CD可形成包结比为2∶1的超分子包络物,包络物表观稳定常数为2.0×103L/mol。表面活性剂的表观临界胶束浓度(CMC*)与环糊精的浓度呈较好的线性关系。The relations of supramolecular inclusion complex of 6-OTs-β-CD with CTAC and apparent critical micelle concentrations （CMC^＊） of CTAC to concentrations of 6-OTs-β-CD at 288K were studied by surface tension measurement. The results showed that supramolecular inclusion complex with stoi- chiomtetry of 2 ： 1 in aqueous solution can be formed by 6-OTs-β-CD with CTAC. Apparent formation constant of the inclusion complex is 2. 0 × 10^3 L/mol. CMC^＊ of the surfactant varied linearly with CD concentrations.

关 键 词：Β-环糊精 表面活性剂 包络物 表面张力 

分 类 号：TQ423.2[化学工程]