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| Abstract: |
| Cetyltrimethylammonium bromide (CTAB)/potassium bromide (KBr) micellar system has been used as a viscosity probe to study the inclusion complexation between β-cyclodextrin (β-CD) and CTAB. Viscosity measurements show that the inclusion complexation between β-CD and CTAB may cause the breakdown of CTAB/KBr wormlike micelles, resulting in the decrease of the solution viscosity. The viscosity minimum at Cβ-CD/CCTAB=2 indicate the molecular ratio of host molecule to guest molecule is 2:1 in the β-CD/CTAB inclusion complex. |
| Key words: Cetyltrimethylammonium bromide, KBr, β-cyclodextrin, Viscosity |
| FundProject: |
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| 利用CTAB/KBr胶束体系为探针研究β-环糊精与CTAB的包合作用 |
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陈晓明*
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| 摘要: |
| 利用十六烷基三甲基溴化铵(CTAB)/溴化钾(KBr)胶束体系为粘度探针研究了β-环糊精与CTAB的包合作用． 发现在CTAB/KBr水溶液中添加β-环糊精时溶液相对粘度减少，归因于β-环糊精与CTAB的包合作用使CTAB/KBr胶束体系解散，而根据粘度在β-环糊精与CTAB的浓度比为2时达到最小值，则可计算β-环糊精与CTAB主客体包合比为2:1. |
| 关键词: 十六烷基三甲基溴化铵，溴化钾，β-环糊精，粘度 |
| DOI：10.1088/1674-0068/24/04/484-488 |
| 分类号: |