This article describes the chemical recycling methods of network polymers based on the dynamic covalent chemistry. Reversible polymerization and crosslinking can be achieved by utilizing a variety of bondings such as imine, tert-ammonium salt, oxazoline, spiroorthoester, alkoxyamine, boronic acid, C=C bond, and disulfide, in addition to Diels-Alder reaction. Interlocked bonding such as rotaxane bond is emphasized as a crosslinking bonding coupled with the dynamic covalent bond of its axle component.
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