| 新型液膜振荡器 |
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| 引用本文： | 贺占博,阎喜龙,聂玉敏,张凤才.新型液膜振荡器[J].物理化学学报,1999,15(4):370-374. |
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| 作者姓名： | 贺占博 阎喜龙 聂玉敏 张凤才 |
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| 作者单位： | Department of Chemistry,Tianjin University,Tianjian 300072 |
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| 基金项目： | 国家自然科学基金!29773030 |
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| 摘 要： | 表面活性剂不仅对均相的非线性化学反应动力学研究有重要作用”－‘］，而且表面活性剂穿越油水界面扩散时形成的自发液膜振荡过程亦可作为一个简单模型，用以说明多相反应与扩散偶合所产生的复杂周期现象，特别是说明生物系统生理现象中的振荡与混饨．这些早在贺占博的博士论文l’］就已提出，但至今此方面的研究仍进展甚微，而其意义却非常重大，迫切需要进一步研究．关于液膜振荡的本质，目前有两种说法．一种是界面流体力学的Marangoni效应，另一种为化学本质的胶束一单分子膜一反胶束的表面活性剂聚集状态的周期变化l’‘．我们的实验…
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| 关 键 词： | 振荡器 液膜 乳化 混合溶剂 非离子表面活性剂 |
| 收稿时间： | 1998-06-29 |
| 修稿时间： | 1998-10-08 |
New Type of Liquid Membrane Oscillator |
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| He Zhanbo,Yan Xilong,Nie Yumin,Zhang Fengcai.New Type of Liquid Membrane Oscillator[J].Acta Physico-Chimica Sinica,1999,15(4):370-374. |
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| Authors: | He Zhanbo Yan Xilong Nie Yumin Zhang Fengcai |
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| Institution: | Department of Chemistry,Tianjin University,Tianjian 300072 |
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| Abstract: | A new type of liquid membrane oscillator in which non-ionic surfactant is the key component was designed in a U type tube and monitored by a pair of Pt electrodes. The fundamental composition is 1. 0% emulsifier OP (aq) / n-butanol: nitrobenzene = 1: 5 (V/ V) /0. 5mol. dm-3NaCl(aq). The molecular formula of emulsifier OP is C8H17 O(CH2CH2O) 10H. The mechanism and influence factors were studied by replacing component, changing concentration, adding additive, comparison between different experimental apparatus and auxiliary experiment. The oscillatory mechanism is repetitive formation and abrupt destruction of interface membrane of the surfactant, induced by hydrogen bond between n-butanol and emulsifier OP. |
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| Keywords: | Oscillator Liquid membrane Nonionic surfactant |
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