一种含偶氮苯的二肽表面活性剂的合成及自组装行为  

Synthesis and self-assembly of an azobenzene-containing dipeptide surfactant

作　　者：赵淋淋 焦宇恬 赵莉[1] 王策 徐宝财[1] Linlin Zhao;Yutian Jiao;Li Zhao;Ce Wang;Baocai Xu(School of Light Industry Science and Engineering,Beijing Technology and Business University,Beijing 100048,China)

机构地区：[1]北京工商大学轻工科学与工程学院,北京100048

出　　处：《日用化学工业（中英文）》2024年第5期507-513,共7页China Surfactant Detergent & Cosmetics

基　　金：国家自然科学基金资助项目(22008002);北京市属事业单位青年拔尖人才培养项目(BPHR2203049)。

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-C_(6)-GG)。在各种弱相互作用的驱动下,Azo-C_(6)-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-C_(6)-GG和α-环糊精(α-CD)可以形成超两亲分子(Azo-C_(6)-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。A glycylglycine-derived surfactant containing an azobenzene moiety as terminal(Azo-C_(6)-GG)was synthesized.Azo-C_(6)-GG self-assembled into vesicles driven by several non-covalent interactions.The transazobenzene transformed to cis-azobenzene after the irradiation of UV light,and vesicles were still formed in this cis-Azo-C_(6)-GG system.A supra-amphiphile(Azo-C_(6)-GG@α-CD)was formed after the addition ofα-cyclodextrin(α-CD),which formed vesicles in aqueous solution.The azobenzene group was embedded into the cavity ofα-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 ofα-CD.The Azo-C_(6)-GG@α-CD complexes were found to self-assemble into vesicles both before and after the UV light irradiation.

关 键 词：偶氮苯 环糊精 光照 囊泡 自组装 

分 类 号：TQ423[化学工程]