Chemically fueled covalent crosslinking of polymer materials. Issue 14 (29th January 2019)

• Record Type: Journal Article
• Authors: Zhang, Borui; Jayalath, Isuru M.; Ke, Jun; Sparks, Jessica L.; Hartley, C. Scott; Konkolewicz, Dominik
• Is Part Of: Chemical communications. Volume 55:Issue 14(2019)
• Page Start: 2086
• Page End: 2089
• Publication Date: 2019-01-29
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c8cc09823a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Non-equilibrium covalently crosslinked hydrogels are synthesized using carbodiimide fueled coupling of carboxylic acids to anhydrides which eventually dissipate by hydrolysis. Abstract : Transiently crosslinked dynamic polymer networks are developed, using carbodiimide hydration to link carboxylic acids as anhydrides. From aqueous polymer solutions, non-equilibrium hydrogels are transiently formed, which dissolve upon anhydride hydrolysis. The materials can be refueled using a subsequent injection of carbodiimide. The gels exhibit higher storage moduli compared to transient supramolecular gels as a result of their covalent crosslinks.