主链型复杂超分子超支化共聚物的合成及自组装研究

项目名称： 主链型复杂超分子超支化共聚物的合成及自组装研究

项目编号： No.21474062

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： 周永丰

作者单位： 上海交通大学

项目金额： 92万元

中文摘要： 超分子聚合物由于具有特殊的可逆结构和动态性能，已经成为当前高分子科学的一个研究热点。一般超分子聚合物是以小分子单体或者线性嵌段作为结构单元来构建的，主要限于线性链结构。本项目拟以超支化聚合物作为结构单元来合成更为复杂的非线性超分子聚合物，特别是两亲性的超分子嵌段共聚物。主要拟开发 超支化-线性-超支化超分子三嵌段共聚物；主链型树枝化超分子聚合物；以超支化聚合物为核，超支化聚合物为臂的超支化-星状-超支化超分子聚合物；及具有超大尺寸的超级超分子超支化聚合物。拟通过本项目研究进一步丰富超分子聚合物的种类和模块化合成的路线，将其拓扑结构从原来的单粒子或线性形状拓展到哑铃状、一维圆柱状、三维球状和网络状，制备得到含几个到几十个超支化聚合物重复单元的大结构、大尺寸超分子聚合物。另外，这些拓扑结构特殊的两亲性超分子聚合物有望展示出独特的自组装行为。

中文关键词： 大分子自组装；超分子聚合物；超支化聚合物；环糊精；主客体相互作用

英文摘要： Recently, supramolecular polymers have attracted more and more attention due to their reversible and dynamic properties. However, up to now, most of the supramolecular polymers are constructed from the building blocks of small molecular monomers or polymeric blocks and are limited to a linear chain structure. In this project, we hope to construct more complex non-linear supramolecular polymers, especially amphiphilic supramolecualr block copolymers, with the building block of hyperbranched polymers. Four kinds of supramolecular polymers are expected to be synthesized, including the hyperbranched-linear-hyperbranched supramolecular triblock copolymer, main chain supramolecular dendronized polymers, hyperbranched-star-hyperbranched supramolecular polymers with a hyperbranched core and many hyperbranched polymer arms; and super supramolecular hyperbranched polymers. It has been believed that the present work will extend the type of supramolecular polymers as well as the modular synthesis routes, and generate the complex supramolecular polymers with a dumbbell-like, one-dimensional cylinder-like, or three-dimensional spherical or network-like structure and a big size with the repeating unites in the range from several to tens of hyperbranched polymers. In addition, these special amphiphilic supramolecular block copolymers might be promising polymeric precursors in self-assembly due to special topological structures.

英文关键词： macromolecular self-assembly;supramolecular polymers;hyperbranched polymers;cyclodextin;host-guest interactions