Lue Xiang, Xianfeng Liu, Yuxiang He, Ke Zhang*

Macromolecules 2020, 53, 5434.

The 1,6-conjugate addition of a stable para-quinone methide of 2,6-di-t-butyl-7-phenyl-p-quinone methide (QM1) and thiol nucleophiles was demonstrated as an eye-readable dynamic covalent click reaction. When applying it in polymer synthesis to couple the QM1 and thiol functionalized polymer building blocks, an eye-readable and efficient method was developed to prepare topological polymers such as block copolymer and bottlebrush polymer with stimulated reversible macromolecular structures. In addition, by applying it in the formation of polymer networks, the dynamic covalent reaction property endowed the resultant cross-linked polymer materials with excellent healable characteristics. This is the first time to employ the QM1-thiol dynamic covalent click reaction to prepare the novel dynamic covalent polymer materials.

文章链接：https://dx.doi.org/10.1021/acs.macromol.0c00408