羟丙基-β-环糊精及β-环糊精与十六烷基三甲基溴化铵混合体系的电导研究  

Conductivity Study of Mixed Systems of HP-β-Cyclodextrin or β-Cyclodextrin with Cetyltrimethylammonium Bromide

作　　者：雍国平[1] 李光水[1] 阎向阳[1] 刘少民[1] 

机构地区：[1]中国科学技术大学食品科学与工程系,安徽合肥230052

出　　处：《精细化工》2003年第1期16-17,28,共3页Fine Chemicals

摘　　要：用电导法研究了十六烷基三甲基溴化铵 (CTMAB)与羟丙基 β 环糊精 (HP β CD)及 β 环糊精 (β CD)混合体系的电导行为。结果表明 ,由于CTMAB与HP β CD或 β CD间形成了包合物 ,使体系电导率增加的幅度减缓。当体系中HP β CD或 β CD的浓度增加时 ,CTMAB的临界胶束浓度 (CMC)增加 ,即转折点后移 ,且HP β CD对CTMAB的CMC转折点后移的影响较 βThe conductivities of mixed systems of hydroxypropyl-β-cyclodextrin(HP-β-CD)or β-cyclodextrin(β-CD)with cetyltrimethylammonium bromide(CTMAB) were studied.The results showed that the conductivities of mixed systems of HP-β-CD or β-CD with CTMAB increase more slowly than that of CTMAB only,due to formation of inclusion complexes of HP-β-CD or β-CD with CTMAB. The critical micelle concentration(CMC) of CTMAB is also increased by increasing the concentration of HP-β-CD or β-CD,and it can be found that the effect of HP-β-CD on CMC of CTMAB is more obvious than that of β-CD.

关 键 词：羟丙基-Β-环糊精 Β-环糊精 混合体系 研究 十六烷基三甲基溴化铵 包合物 临界胶束浓度 电导率 

分 类 号：O636.12[理学—高分子化学]