基于双重刺激响应型表面活性剂的智能自组织体系研究

项目名称： 基于双重刺激响应型表面活性剂的智能自组织体系研究

项目编号： No.21473080

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 蒋建中

作者单位： 江南大学

项目金额： 85万元

中文摘要： 表面活性剂分子及其聚集体的结构、性质和功能的调控是当前研究的热点之一。传统调控方法一般是改变温度或者添加化学物质如酸、碱、盐以及助表面活性剂等，后者不可避免地增加了化学物质的排放和污染，并且难以实现可逆调控和表面活性剂的简便分离。本项目拟设计、合成一系列在分子结构中同时含有CO2/N2响应基团和光响应基团的新型CO2/N2-光双重刺激响应型表面活性剂。利用CO2/N2开关对表面活性剂的表面活性进行一级调控；利用光刺激对疏水基进行二级调控，从而实现对表面活性剂及其聚集体的双重调控。进而研究该表面活性剂及其复配体系在界面和溶液中自组织体的形成、结构和双重响应特性，在此基础上构建具有双重响应、能够实现可逆变化和绿色调控的智能体系(如胶束、囊泡、泡沫等)。研究结果对丰富刺激响应型表面活性剂以及开拓新的应用领域具有重要的科学意义。

中文关键词： 表面活性剂；刺激响应；合成；自组织

英文摘要： The adjustment and control of the structures, properties, and functions of surfactant molecules and their aggregates is one of the hottest topics in surfactant area. The traditional methods include changing temperature or adding chemicals such as acids, bases, salts and co-surfactants. The latter, however, will inevitably increases chemical release and pollution, and by which it is difficult to realize a reversible adjusment or recycle of surfactants in relative systems. This project tries to design and synthesize a new serial of dual stimuli-responsive surfactants with two triggers, CO2/N2 and light, in one surfactant molecule, by using tertiary amine, amidine or guanidine as the precursors of the hydrophilic groups and azobenzene or coumarin as parts of hydrophobic groups. The surface activity and other properties of the surfactants can thus be primarily controlled by CO2/N2 trigger, and secondly by light trigger. Dual adjusment and control to surfactant molecules can then be realized. Furthermore the dual responsivity of the self-assembly aggregates both at the interfaces and in aqueous solutions of these surfactants and their mixtures with another surfactants, as well as the switch transfer character of these surfactants via interaction with nanoparticles and other surfactants will also be studied, by which a series of dual stimuli-responsive,reversible and greenly adjustable and controlable new smart systems (micelles, vesicles,and foams etc.) will be established.The results will provide some significant fundamental knowledge of stimuli-responsive surfactants and better understanding of application value for the surfactants.

英文关键词： surfactant;stimuli responsive;synthesis;self-assembly