末端交联聚醚聚三唑弹性体CuAAC本体制备及其力学特性、适用性研究

项目名称： 末端交联聚醚聚三唑弹性体CuAAC本体制备及其力学特性、适用性研究

项目编号： No.51473022

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 翟进贤

作者单位： 北京理工大学

项目金额： 78万元

中文摘要： 亚铜催化端炔基/叠氮基1,3-偶极环加成点击化学反应(CuAAC)是制备三维交联、网络结构规整弹性体的理想反应。本研究探索以亚铜有机络合物为催化剂，在端叠氮基聚环氧乙烷-四氢呋喃共聚醚(ATPET)和多官能度端炔基交联剂的本体混合体系中，实现聚醚末端CuAAC化学交联。研究催化剂种类、含量对ATPET/多官能度端炔基交联剂本体反应动力学影响规律；揭示催化剂种类、浓度、反应温度对聚醚聚三唑弹性体网络结构均一性的影响，实现聚醚末端CuAAC反应速率可控；制备得到不同ATPET分子量、交联剂官能度和投料比的末端三维交联、网络结构规整的聚醚聚三唑热固性弹性体，研究该弹性体网络结构与力学性能的关系；通过制备聚醚聚三唑基复合材料，验证聚合物末端CuAAC交联在制备复合材料中的适用性。为CuAAC本体反应制备末端交联、网络结构规整弹性体及其复合材料奠定理论基础。

中文关键词： CuAAC点击化学；聚醚聚三唑弹性体；可控制备；结构与性能；聚醚聚三唑复合材料

英文摘要： The copper(I)-catalysed azide-alkyne Huisgen 1,3-dipolar cycloaddition reaction, so called click chemistry, is an ideal reaction to prepare three-dimensional end-crosslinked, uniform network elastomers. A organic cuprous complex will be directly utilized as the catalyst of the CuAAC reaction between azide-terminated tetrahydrofuran ethylene oxide copolyether (ATPET) and polyfunctional propargyl-terminated end-linking agent in this project. The effect of the type, concentration of the organic cuprous complex on CuAAC bulk-reaction kinetics will be investigated. The dependence of network structure uniformity on catalyst type, concentration and reaction temperature will be revealed. By preparing end-linking，regular network polyether polytriazole thermosetting elastomers with various molecular weight of ATPET, functionality of end-linking agents and feed ratio, the influence of microscopic network structures on macroscopic mechanical properties of end-linked polyether polytriazole thermosetting elastomers prepared by CuAAC reaction will be explored. In addition, to confirm the applicability of CuAAC end-linked reaction in the field of polymeric composites, the attempt to prepare the polyether polytriazole composites will be made. For the preparation of end-linked,regular network structure elastomer and its composites by bulk CuAAC, the theoretical base will be established.

英文关键词： CuAAC click chemistry;polyether polytriazole elastomer;controllable preparation;structure and properties;polyether polytriazole composites