作者:Maciej Podgórski、Sudheendran Mavila、Sijia Huang、Nathan Spurgin、Jasmine Sinha、Christopher N. Bowman
DOI:10.1002/anie.202001388
日期:2020.6.8
highly reversible and it is accordingly employed in the fabrication of covalent adaptable networks (CANs) that possess tunable dynamic covalent chemistry. Maleic, succinic, and phthalic anhydride derivatives were used as bifunctional reactants in systems with varied stoichiometries, catalyst, and loadings. Dynamic characteristics such as temperature‐dependent stress relaxation, direct reprocessing and
硫醇和酸酐形成开环硫酯/酸的反应显示出高度可逆性,因此可用于制造具有可调动态共价化学结构的共价适应性网络(CAN)。马来酸,琥珀酸和邻苯二甲酸酐衍生物在具有不同化学计量比,催化剂和负载的体系中用作双官能反应物。讨论了动态特性,例如与温度有关的应力松弛,各种硫醇酐弹性体,玻璃,复合材料和光敏聚合物的直接后处理和再循环能力。根据催化剂的强度,在温和的温度(80–120°C)下,几分钟到2个小时内外部应力的100%松弛。