含硒磺基甜菜碱表面活性剂界面性能的氧化-还原响应行为

引用本文: 孔伟伟, 郭爽, 张永民, 刘雪锋. 含硒磺基甜菜碱表面活性剂界面性能的氧化-还原响应行为[J]. 物理化学学报, 2017, 33(6): 1205-1213. doi: 10.3866/PKU.WHXB201702222 shu

Citation: KONG Wei-Wei, GUO Shuang, ZHANG Yong-Min, LIU Xue-Feng. Redox-Responsive Interfacial Properties of Se-Containing Sulfobetaine Surfactant[J]. Acta Physico-Chimica Sinica, 2017, 33(6): 1205-1213. doi: 10.3866/PKU.WHXB201702222 shu

含硒磺基甜菜碱表面活性剂界面性能的氧化-还原响应行为

江南大学化学与材料与工程学院, 食品胶体与生物技术教育部重点实验室, 无锡 214122
基金项目:
国家自然科学基金（21503094，21673103），111引智计划“功能分子、聚集体及器件创制创新引智基地（B13025）”，江苏省自然科学基金（BK20150128）及江苏省青蓝工程资助

摘要: 硒，作为一种新的氧化-还原响应位点因其良好的生物相容性日益引起人们的关注，然而，对这种新型氧化-还原响应型表面活性剂的研究相对较少，尤其是其界面性能的智能调控。本文以含硒两性离子表面活性剂苄基十一烷基磺基甜菜碱（BSeUSB）为对象，研究了其分子结构、Krafft温度、表/界面张力及发泡和乳化性能的氧化-还原刺激响应行为。发现在极微量的H₂O₂（≤体系总质量的0.056%）氧化下，BSeUSB分子中疏水的-Se-C-键转变成了具有一定亲水能力的Se=O键，表面活性剂从单头单尾的还原态变成了类Bola型的氧化态，导致表面活性剂的Krafft温度由（23.5±0.5）℃下降至0℃以下，5.00 mmol·L^-1时的表/界面张力分别从45.15、5.52 mN·m^-1升高至61.63、18.38 mN·m^-1。宏观上，还原态具有良好的发泡和乳化性能，而氧化态的发泡和乳化能力几乎消失。再次加入极少量还原剂Na₂SO₃（≤体系总质量的0.060%）后，分子的微观结构和溶液性能又可恢复到初始状态。总之，通过极微量H₂O₂和Na₂SO₃的交替加入，我们实现了该表面活性剂界面性能的智能调控。

关键词:

English

Redox-Responsive Interfacial Properties of Se-Containing Sulfobetaine Surfactant

School of Chemical & Materials Engineering, Key Laboratory of Food Colloids and Biotechnology Ministry of Education, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China
Received Date: 27 December 2016
Revised Date: 22 February 2017
Available Online: 22 February 2017
Fund Project:
The project was supported by the National Natural Science Foundation of China (21503094, 21673103), MOE & SAFEA for the 111 Project (B13025), Fundamental Research Funds for the Central Universities, China (JUSRP 51507), Natural Science Foundation of Jiangsu Province, China (BK20150128) and Qinglan Project of Jiangsu Province, China.

Abstract: Because of good biocompatibility using Se atom as the redox-responsive group has aroused considerable attention. However, only a few efforts have been devoted to Se-containing surfactant, especially for smart control of interfacial properties. This paper focuses on the redox-responsive behaviors of molecular structure, Krafft temperature, Surface/interfacial tension, foaming and emulsification of Se-containing zwitterionic surfactant, benzylselanyl-undecyl-dimethyl ammonium propane sulfonate (BSeUSB). The results show that after oxidization with a trace of H₂O₂ (≤0.056% of total mass), reduced form BSeUSB with one hydrophilic head and one hydrophobic tail transformed to Bola-type oxidized form BSeUSB-Ox due to the presence of a new hydrophilic group (selenoxide). And thus Krafft temperature decreased from (23.5±0.5)℃ to less than 0℃. The surface/interfacial tension at 5.00 mmol·L^-1 increased from 45.15, 5.52 mN·m^-1 to 61.63, 18.38 mN·m^-1, respectively. Macroscopically, reduced form BSeUSB has good foaming and emulsification properties, while the foaming and emulsification abilities of oxidized form BSeUSB-Ox almost disappeared. Interestingly the molecular structure and the solution properties re-turned the initial states after reduction with a trace of Na₂SO₃ (≤0.060% of total mass). In a word, by the addition trace amounts of H₂O₂ and Na₂SO₃ alternately, we have achieved the smart control of the interfacial properties of the surfactant.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

含硒磺基甜菜碱表面活性剂界面性能的氧化-还原响应行为

English

Redox-Responsive Interfacial Properties of Se-Containing Sulfobetaine Surfactant

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中国化学会秘书处

含硒磺基甜菜碱表面活性剂界面性能的氧化-还原响应行为

English

Redox-Responsive Interfacial Properties of Se-Containing Sulfobetaine Surfactant

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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