β-环糊精与十二烷基硫酸钠的包结作用  

The inclusion of β-CD with C_(12)H_(25)NaSO_4

作　　者：郭飞燕[1] 纪明慧[1] 舒火明[1] 韦吉崇[1] 郑莹[1] 

机构地区：[1]海南省热带药用植物化学重点实验室海南师范大学化学系,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2008年第1期56-59,81,共5页Journal of Hainan Normal University（Natural Science）

基　　金：海南省自然科学基金项目(20704);海口市农业局项目(2006006)

摘　　要：用电导法研究了β-环糊精(β-CD)与阴离子表面活性剂十二烷基硫酸钠的包结作用.研究表明:十二烷基硫酸钠与β-CD形成包结物,当体系中β-CD浓度增加时十二烷基硫酸钠的表观临界胶束浓度(cmc*)增加,实验体系的表观临界胶束浓度(cmc*)与β-CD浓度呈良好的线性关系.用旋光法测得十二烷基硫酸钠与β-CD可以形成摩尔比为1∶1型的稳定包结物.The inclusion complex of β-cyclodextrin （β-CD） with C12H25NaSO4 in aqueous solution was studied using conductance method. The result shows that due to the formation of inclusion complex of β-CD with C12H25NaSO4, the critical micelle concentration （cmc^＊）of C12H25NaSO4 is raised by increasing the concentration of β-CD . The cmc^＊ of the experimental systems varies linearly with the concentration of β-CD. It has been also determined by polarimetry that the inclusion complexes of β-CD with C12H25NaSO4 are mainly of 1：1 （mol radio） type.

关 键 词：十二烷基硫酸钠 Β-环糊精 表观临界胶束浓度(cmc^＊) 包结作用 

分 类 号：TQ423.11[化学工程]