“Schizophrenic”嵌段共聚物多重胶束化的研究  

Schizophrenic Micellization of Block Copolymers

作　　者：张晓晖[1] 艾长军[1] 马敬红[1] 徐坚[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《化学进展》2011年第4期781-790,共10页Progress in Chemistry

基　　金：上海市重点学科建设项目(No.B603)资助

摘　　要：在不同环境刺激下自组装形成多重胶束的"schizophrenic"嵌段共聚物由于诱人的潜在应用而引起广泛的关注。本文综述了各种刺激诱导形成多重胶束的"schizophrenic"嵌段共聚物研究情况,介绍了多重胶束化不同形态的影响因素和胶束稳定方面的进展。并对"schizophrenic"嵌段共聚物的合成与表征技巧进行了总结,最后讨论了当前研究中仍需解决的问题,并对其应用前景做了展望。The schizophrenic micellization of block copolymers who can self-assembled into well-defined structures in aqueous solution in response to specific stimuli such as temperature, pH, ionic strength and light has draw much attention due to the attractive protential applications. A typical case in this new sub-field involved environmental-sensitive AB diblock copolymer synthesized by group transfer polymerization （GTP） or living radical polymerisation （ATRP or RAFT）, allowing the formation of two distinct types of micelle structures （A-core / B- corona and B-core / A-corona structures） in response to external stimuli and the two structures can be reversibly converted into each other. This remarkable property was introduced by Armes and coworkers for ＇smart＇ pH- dependent micelles of poly [ 2- （diethylamino） ethyl methacrylate ~ -block- poly [ 2- （N-morpholino） ethyl meth- acrylate ]. Recent progress in synthesis and environmental-induced schizophrenic micellization of block copolymers, the morphology of aggregations self-assembled from schizophrenic block copolymers and fixed structure of micelles by crosslinker have been reviewed. Technical problems in synthesis and characterization of schizophrenic micellization are also discussed, including 1H-NMR spectra, zeta potential, light scattering, transmittance of the solution and stopped-flow spectrophotometric techniques. Furthermore, the problems in schizophrenic micellization those still should be resolved are pointed out, and the direction of this research field is discussed.

关 键 词：“schizophrenic”嵌段共聚物 自组装 多重胶束化 环境诱导 

分 类 号：O631.13[理学—高分子化学]