物理化学学报2004，Vol.20Issue(4)：368-372,5.
TPPS和Gemini表面活性剂的复合膜及其手性的研究
Supramolecular Assembly and Chirality of a Complex Film between Achiral TPPS and a Gemini Surfactant at the Air/water Interface
摘要
Abstract
Supramolecular assembly and chirality between a novel gemini surfactant (C12H24-α, ω-(C12H25N + (CH3)2Br-)2,(abbreviated as C12-C12-C12) and TPPS (tetrakis(4-sulfonatophenyl) porphine) at the air/water interface were investigated. It was found that although the gemini surfactant itself could not form a stable monolayer at the air/water interface, when there existed TPPS in the subphase, a stable complex monolayer could be formed. The complex monolayer could be transferred onto solid substrate by a horizontal lifting method. At a certain pH value of the subphase, TPPS could form a J-aggregate. It was further found that the J-aggregate of TPPS showed a strong split Cotton effect in the transferred film although both the gemini surfactant and TPPS are achiral. Further investigation through AFM measurements revealed that the nanothread formed in the transferred film was responsible for the chirality of the multilayer film. In addition, the two positive charge center of the gemini surfactant did not necessarily play the cooperative role in inducing the chirality of TPPS J-aggregate.关键词
Gemini表面活性剂/多层膜/手性Key words
Gemini surfactant/Multilayer film/Chirality分类
化学化工引用本文复制引用
张莉,王金本,刘鸣华..TPPS和Gemini表面活性剂的复合膜及其手性的研究[J].物理化学学报,2004,20(4):368-372,5.基金项目
国家自然科学基金(29992593,20273078)和杰出青年基金(20025312)资助项目 （29992593,20273078）
