结构规整的两亲性和全亲水性不对称聚合物分子刷的简便合成和自组装行为的研究

分子自组装是分子间通过弱相互作用和形状识别而自发形成高级有序的结构，通过大分子自组装构建新型结构和功能的纳米材料是目前材料科学研究的一个热点。长期以来，两亲性共聚物的研究集中于嵌段共聚物的合成及其自组装行为；而两亲性接枝共聚物的组成尺寸等参数更易被调控，还可形成单分子胶束，聚集形态也丰富多样。本项目中，我们首先通过分子设计合成2种同时含有ATRP引发官能团/羟基(炔基)的新丙烯酸酯类单体，然后将ATRP、开环聚合、Click或ATNRC偶联反应结合起来，通过连续的活性聚合和偶联反应合成多种未见报道的结构规整的两亲性和全亲水性不对称聚合物分子刷，深入研究这类结构新颖的接枝共聚物的自组装行为，可以加深我们对聚合物结构与其性质之间关系的认识和理解，对于我们利用接枝共聚物自组装制备具有特定功能和结构的纳米材料将具有很好的指导意义，而且对于寻找新型稳定的自组装材料将有很大的促进作用。

Molecules can self-assemble to form highly ordered structures spontaneously via weak interaction and shape recognization, and the construction of novel nano-material with new structure and function via macromolecular self- assembly is a hotspot of current material science. For a long time, the studies on amphiphilic copolymer have been focused on the synthesis and self-assembly behavior of block copolymer; while the parameters of amphiphilic graft copolymer such as composition and dimension are easier to be tuned, graft copolymers can form uni- molecular micelles and the corresponding morphologies of the aggregates formed by graft copolymers are also diverse similar to those of block copolymers. In this project, two new acrylate monomers bearing ATRP initiating group/hydroxyl(alkynyl) will be firstly synthesized; next, a series of novel well-defined amphiphlic and double hydrophilic asymmetric polymer brushes will be synthesized via the sucessive living polymerization (ATRP+ROP) and Cu-catalyzed click and ATNRC coupling reactions without post-polymerization functionalization, followed by investigating their self-assembly behavior in detail.Thus, we can grow on the cognition and understanding of the correlation between the properties and the structure of the copolymers to benefit the preparation of nano-material with specific structure and function via the self-assembly of graft copolymers, and to facilitate the seeking of new atable self-assembly material.