12-4-12/tCA沉淀相的光响应溶解及聚集体结构转变  

Photoresponsive Dissolution and Aggregation Structure Transformation of 12-4-12/tCA Precipitates

作　　者：杨晨 王小永[1] Yang Chen;Wang Xiaoyong(School of Chemistry&Molecular Engineering,East China University of Science and Technology,Shanghai,200237)

机构地区：[1]华东理工大学化学与分子工程学院,上海200237

出　　处：《化学通报》2021年第12期1378-1382,共5页Chemistry

基　　金：国家自然科学基金项目(21573071)资助。

摘　　要：双子表面活性剂12-4-12与反式肉桂酸(tCA)由于强烈的静电吸引作用而生成12-4-12/tCA沉淀相。通过偏光显微镜和X射线衍射分析发现,12-4-12/tCA沉淀相具有六角和层状的复合晶体结构。在365nm紫外光照射下,12-4-12/tCA沉淀相会逐渐溶解,依次经历晶体-囊泡-蠕虫状胶束的转变,对12-4-12/tCA沉淀相的光响应溶解及聚集体结构转变机理进行了讨论。12-4-12/1CA preeipitates are formed due to the strong eleetrostatie ltraction between gemini surfactant 12-4-12 and trans-cinnamie acid(ICA).We have used polarized optial microscope and X-ray difraection to find that 12-4-12/1CA precipitates have composite structure of hexagonal and lamellar crystals.Under the irradiation with ultraviolet lighl.12-4-12/1CA precipitales can gradually dissolve.and succssively experience the transformation of crystals-vesicles-worm-like micelles.The mechanisms for the photoresponsive dissolution and aggregation strueture transformation of 12-4-12/ICA precipitates are diseussed.

关 键 词：双子表面活性剂 沉淀相 光响应 分子异构化 临界堆积参数 

分 类 号：TQ423[化学工程]