一种含偶氮苯的二肽表面活性剂的合成及自组装行为

doi:10.3969/j.issn.2097-2806.2024.05.002

摘要/Abstract

摘要：

合成了尾端含有偶氮苯基团的双甘肽衍生表面活性剂（Azo-C₆-GG）。在各种弱相互作用的驱动下，Azo-C₆-GG自组装形成囊泡结构。紫外光照诱导反式偶氮苯转变为顺式结构，但自组装结构依然为囊泡。Azo-C₆-GG和α-环糊精（α-CD）可以形成超两亲分子（Azo-C₆-GG@α-CD）。偶氮苯基团进入环糊精的空腔，但同时发现环糊精在烷基链和偶氮苯之间发生滑动。该超两亲分子自组装形成囊泡结构；紫外光照后，超两亲分子没有解体，但环糊精移动到烷基链部分。环糊精的结合部位对聚集结构没有造成明显的影响，均为囊泡结构。

关键词: 偶氮苯, 环糊精, 光照, 囊泡, 自组装

Abstract:

A glycylglycine-derived surfactant containing an azobenzene moiety as terminal （Azo-C₆-GG） was synthesized. Azo-C₆-GG self-assembled into vesicles driven by several non-covalent interactions. The trans-azobenzene transformed to cis-azobenzene after the irradiation of UV light, and vesicles were still formed in this cis-Azo-C₆-GG system. A supra-amphiphile （Azo-C₆-GG@α-CD） was formed after the addition of α-cyclodextrin （α-CD）, which formed vesicles in aqueous solution. The azobenzene group was embedded into the cavity of α-CD, and meanwhile, the CD ring shuttled between the alkyl chain and the azobenzene group. After the UV light irradiation, the alkyl chain was embedded into the cavity of α-CD. The Azo-C₆-GG@α-CD complexes were found to self-assemble into vesicles both before and after the UV light irradiation.

Key words: azobenzene, cyclodextrin, light irradiation, vesicle, self-assembly

中图分类号:

TQ423

赵淋淋, 焦宇恬, 赵莉, 王策, 徐宝财. 一种含偶氮苯的二肽表面活性剂的合成及自组装行为[J]. 日用化学工业（中英文）, 2024, 54(5): 507-513.

Linlin Zhao, Yutian Jiao, Li Zhao, Ce Wang, Baocai Xu. Synthesis and self-assembly of an azobenzene-containing dipeptide surfactant[J]. China Surfactant Detergent & Cosmetics, 2024, 54(5): 507-513.

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