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日用化学工业 ›› 2019, Vol. 49 ›› Issue (11): 699-704.doi: 10.3969/j.issn.1001-1803.2019.11.001

• 基础研究 •    下一篇

阴/阳离子表面活性剂自发囊泡的氧化还原响应行为研究

李颖,刘炼,刘雪锋()   

  1. 江南大学 化学与材料工程学院 合成与生物胶体教育部重点实验室,江苏 无锡 214122
  • 收稿日期:2019-03-12 修回日期:2019-10-25 出版日期:2019-11-22 发布日期:2019-11-26
  • 通讯作者: 刘雪锋
  • 作者简介:李 颖(1993-),女,安徽人,硕士研究生,电话:18816201159,E-mail: 18816201159@163.com。
  • 基金资助:
    国家自然科学基金资助项目(21673103);赞宇科研基金资助项目

Study on redox response behaviors of spontaneous vesicles formed by anionic/cationic surfactants

LI Ying,LIU Lian,LIU Xue-feng()   

  1. Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2019-03-12 Revised:2019-10-25 Online:2019-11-22 Published:2019-11-26
  • Contact: Xue-feng LIU

摘要:

利用一种对氧化还原具有刺激响应的阴离子表面活性剂十二烷基硒丙基硫酸钠(SDSePS)与阳离子表面活性剂十二烷基三甲基溴化铵(DTAB)复配形成SDSePS/DTAB自发囊泡,探究了该囊泡的氧化还原可逆响应行为。结果表明,在H2O2的作用下,SDSePS分子中二价硒醚基团(-Se-)可以被氧化成四价硒亚砜基团(-Se=O),SDSePS/DTAB自发囊泡被瓦解成球状胶束;在Na2SO3的作用下,四价硒亚砜基团被还原成二价硒醚基团,SDSePS/DTAB自发囊泡再次形成;在H2O2和Na2SO3的交替作用下,SDSePS/DTAB自发囊泡可以在胶束和囊泡两种状态下可逆氧化还原循环至少10次,还原再生的SDSePS/DTAB自发囊泡的平均半径稳定在115~130 nm。

关键词: 十二烷基硒丙基硫酸钠, 自发囊泡, 氧化还原, 可逆响应

Abstract:

Spontaneous vesicles were formed by the combination of sodium dodecylselanylpropyl sulfate (SDSePS), a redox-responsive anionic surfactant, and a cationic surfactant dodecyltrimethylammonium bromide (DTAB). Then the redox reversible response behavior of the vesicles was explored. The results show that, under the action of H2O2, the divalent selenide group (-Se-) in the SDSePS can be oxidized to a tetravalent selenium sulfoxide group (-Se=O), and the spontaneous vesicles formed by SDSePS/DTAB are disintegrated into spherical micelles; and then under the action of Na2SO3, the tetravalent selenium sulfoxide group is reduced to a divalent selenide group, and the spontaneous vesicles formed by SDSePS/DTAB are regenerated; under the alternating action of H2O2 and Na2SO3, the spontaneous vesicles formed by SDSePS/DTAB can switch between the two states of micelles and vesicles over 10 times at least. The average radius of the regenerated vesicles formed by SDSePS/DTAB remained in the range of 115-130 nm.

Key words: sodium dodecylselanylpropyl sulfate, spontaneous vesicles, redox, reversible response

中图分类号: 

  • TQ423