基于动态共价键构筑热固性聚合物的功能性研究进展  

Research Progress on Functionalization of Thermosetting Polymers Based on Dynamic Covalent Bonds

作　　者：章蔚 江亮 郑有婧 雷景新[1] ZHANG Wei;JIANG Liang;ZHENG You-jing;LEI Jing-xin(College of Polymer Science and Engineering,Polymer Research Institute of Sichuan University,Chengdu 610065,China;China Bluestar Chengrand(Chengdu)Testing Technology Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]四川大学高分子科学与工程学院,高分子研究所,四川成都610065 [2]中蓝晨光成都检测技术有限公司,四川成都610041

出　　处：《塑料工业》2020年第8期7-10,共4页China Plastics Industry

摘　　要：动态共价键可在外界刺激下进行可逆断裂和结合。将动态共价键引入到热固性聚合物分子结构中,在共价键交换温度以下,具有传统热固性聚合物相同的耐溶剂、尺寸稳定和耐蠕变等性能;在共价键交换温度以上时,具有与传统热塑性聚合物相同的二次熔融成型加工和回收利用性能。利用动态性,还可赋予其自修复、塑性形状记忆、液晶驱动和表面改性等功能。本论文以动态共价键为线索,整理分析了近几年基于动态共价键构筑热固性聚合物的功能性研究进展。Dynamic covalent bonds could undergo reversible fracture and bonding under external stimuli.Intense efforts had been devoted to introducing dynamic covalent bonds into the molecular structure of thermosetting polymers.Under the dynamic covalent bond exchange temperature,these thermosetting polymers had excellent solvent resistance,dimension stability and creep resistance,which was similar to the traditional thermosetting polymers.Above the dynamic covalent bond exchange temperature,these thermosetting polymers could be secondary melting reprocessed or recycled,which was similar to the traditional thermoplastic polymers.Utilizing the dynamic nature of dynamic covalent bonds could also endow these thermosetting polymers with self-healing,plastic shape memory,liquid-crystalline actuators and surface modification.The recent applications of thermosetting polymers based on dynamic covalent bonds were reviewed.

关 键 词：动态共价键 热固性聚合物 可重加工 可回收 自修复 

分 类 号：TB332[一般工业技术—材料科学与工程]