基于分子纺织术合成耐高温二维高分子分离膜

项目名称： 基于分子纺织术合成耐高温二维高分子分离膜

项目编号： No.21504023

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 数理科学和化学

项目作者： 黎明

作者单位： 湖北大学

项目金额： 22万元

中文摘要： 二维高分子是厚度为纳米级，内部结构长程有序，通过共价键交联的并可以独立稳定存在的薄膜材料。它可有良好的机械强度，并可具有规整的纳米孔隙结构。.本项目利用分子纺织术，将酰亚胺单体在晶体中层状预组装；通过光或热辐射，使得单体在像纺织一样在层内经纬两个方向连续聚合，得到共价键交联的聚酰亚胺层状结构；通过溶剂插入等方法将层剥离开来得到稳定的二维聚酰亚胺薄膜材料。最后开发该材料在海水淡化，空气及污水治理等方向的应用。

中文关键词： 二维高分子；纳米孔；薄膜；晶体；水处理

英文摘要： A two Dimensional (2D) polymer is a free-standing, covalently bonded, one monomer unit thick, laterally infinite molecular nanosheet possessing a periodic long range order of internal structure. These features may establish the inherent properties such as a high strength behavior and also a regular pattern of nanopores. .In this project,we will apply a ''molecular textile'' strategy to synthesize 2D polymer, which comprises of (1) pre-organization of the imide monomer into layers with the suitable packing for 2D polymerization, (2), photo- or thermal-polymerization in lateral and longitudinal directions so to form polyimide layers and (3) delamination of stable 2D polyimide films by intrusion of appropriate solvents between the layers of the polymerized crystal. Real applications of 2D polymers in desalination and air/sewage treatment will also be investigated.

英文关键词： two-dimensional polymer ;nanopore;membrane;crystal;water treatment