A novel thermoresponsive dynamic covalent chemistry was developed based on 1,6-conjugate addition between a stable para-quinone methide, namely 2,6-di-t-butyl-7-phenyl-p-quinone methide (pQM), and thiol nucleophiles. When applying it in the formation of polymer networks, covalently cross-linked polymer bulk materials were developed with thermoresponsive dynamic properties. This new type of dynamic covalent polymer network possesses wonderful structure stability at room temperature but demonstrates excellent self-healable and recyclable properties at high temperatures above 100 °C. The new thermoresponsive pQM–thiol dynamic covalent chemistry expanded the scope of dynamic covalent polymer network materials.

中文翻译：

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基于动态醌甲基硫醇化学的热响应自修复和可回收聚合物网络

一种新颖的热响应动态共价化学是基于1,6-共轭加成稳定之间开发对-quinone甲基化物，即2,6-二-吨-丁基-7-苯基- p -quinone甲基化物（p QM）和硫醇亲核试剂。当将其应用于聚合物网络的形成过程中，共价交联的聚合物本体材料被开发出来，具有热响应动力学特性。这种新型的动态共价聚合物网络在室温下具有出色的结构稳定性，但在高于100°C的高温下表现出出色的自修复和可回收特性。新的热响应性p QM-硫醇动态共价化学扩大了动态共价聚合物网络材料的范围。