Covalent Adaptable Networks from Polyacrylates Based on Oxime-Urethane Bond Exchange Reaction.

ABSTRACT: Covalent adaptable networks (CANs) are polymer networks cross-linked via dynamic covalent bonds that can proceed with bond exchange reactions upon applying external stimuli. In this report, a series of cross-linked polyacrylate films were fabricated by changing the combination of acrylate monomer and the amount of diacrylate cross-linker possessing oxime-urethane bonds as a kind of dynamic covalent bond to evaluate their rheological relaxation properties. Model analysis of the experimental relaxation curves of cross-linked polyacrylate films was conducted by assuming that they consist of two types of relaxation, one of which is related to the oxime-urethane bond exchange reaction, and another of which is associated with the melting of the aggregated cross-linker. It was found that the cont

SUBMITTER: Sotoyama Y 

PROVIDER: S-EPMC11641462 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature