| PVP与C~1~4BE之间的相互作用 |
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| 引用本文： | 徐桂英,隋卫平,李干佐. PVP与C~1~4BE之间的相互作用[J]. 化学学报, 1997, 55(12): 1179-1184 |
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| 作者姓名： | 徐桂英 隋卫平 李干佐 |
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| 作者单位： | 山东大学;胶体与界面化学国家教委开放实验室;济南大学化学系 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 通过表面张力和胶束聚集数的测定，研究了聚乙烯吡咯烷酮(PVP)与两性表面活性剂十四烷基甜菜碱(C~1~4BE)之间的相互作用。结果表明，PVP与C~1~4BE可通过其分子间的疏水作用和极性基团间的静电力形成PVP大分子/表面活性剂聚集体。因此，混合溶液的表面张力-浓度曲线表现出两个转折点，C~1~4BE的胶束聚集数随PVP浓度增大而减小。
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| 关 键 词： | 胶束 表面活性 聚乙烯基吡咯烷酮 表面张力 甜菜碱 两性离子表面活性剂 相互作用 聚集体 十四烷基 聚集数 |
The interaction between PVP and C~1~4BE |
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| XU GUIYING,SUI WEIPING,LI GANZUO. The interaction between PVP and C~1~4BE[J]. Acta Chimica Sinica, 1997, 55(12): 1179-1184 |
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| Authors: | XU GUIYING SUI WEIPING LI GANZUO |
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| Abstract: | The interaction between polyvinylpyrrolidone (PVP) and zwitterionic surfactant tetradecylbetaine (C~1~4BE) has been investigated by means of surface tension and time resolved fluorescence measurements. It is shown that the addition of PVP results in a decrease of the aggregation number of C~1~4BE and an appearance of two transition points in the surface tension- concentration curve. The results indicate that PVP associates with C~1~4BE to form aggregate by the hydrophobic effect between hydrophobic groups and electrostatic force between polar head groups of C~1~4BE and PVP. |
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| Keywords: | MICELLE SURFACE ACTIVITY POLYVINYLPYRROLIDONE SURFACE TENSION BETAINE AMPHOTERIC SURFACTANTS INTERACTIONS AGGREGALES TETRADECYL AGGREGATION NUMBER |
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