Dynamic covalent Schiff-base silicone polymers and elastomers

Polymers with dynamically exchanging crosslinks possess the ability to be repurposed, in whole or part, following a stimulus. The ability of imines to undergo dynamic exchange reactions under mild conditions was utilized to chain extend or crosslink silicone polymers. Schiff-base crosslinked polysiloxanes were prepared by reacting aminopropyl-functionalized polydimethylsiloxane with aromatic aldehydes. The reactions occur efficiently and the …