Doubly Dynamic Self‐Healing Materials Based on Oxime Click Chemistry and Boronic Acids

• Published in: Macromolecular rapid communications. Vol. 38; no. 6; pp. np - n/a
• Main Authors: Collins, Joe, Nadgorny, Milena, Xiao, Zeyun, Connal, Luke A.
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.03.2017
• Subjects: Acids; boronic acid; Boronic Acids - chemistry; Click Chemistry; Covalence; Crosslinking; Degradation; Dynamics; hydrogel; Hydrogels; Molecular Structure; Networks; oxime; Oximes; Oximes - chemistry; Particle Size; polymer; Polymers; self‐healing; Surface Properties; Tannic acid; polymer; boronic acid; oxime; hydrogel; self-healing

The dynamic covalent characteristics of oxime and boronate ester bonds have been explored. A small excess of a competing aldehyde under acidic conditions resulted in oxime polymer degradation from high molecular weights (30 kDa) to low molecular weight oligomers (2.2 kDa). The dynamic nature of oxim...