Revealing the Supramolecular Nature of Side-Chain Terpyridine-Functionalized Polymer Networks

International Journal of Molecular Sciences

Jérémy Brassinne¹  Florian D. Jochum¹  Charles-André Fustin¹  Jean-François Gohy¹ 

关键词: supramolecular polymer;    terpyridine;    hydrogel;    associating polymer;    polymer rheology;   

DOI  :  10.3390/ijms16010990

来源: mdpi

【 摘 要 】

Nowadays, finely controlling the mechanical properties of polymeric materials is possible by incorporating supramolecular motifs into their architecture. In this context, the synthesis of a side-chain terpyridine-functionalized poly(2-(dimethylamino)ethyl methacrylate) is reported via reversible addition-fragmentation chain transfer polymerization. By addition of transition metal ions, concentrated aqueous solutions of this polymer turn into metallo-supramolecular hydrogels whose dynamic mechanical properties are investigated by rotational rheometry. Hence, the possibility for the material to relax mechanical constrains via dissociation of transient cross-links is brought into light. In addition, the complex phenomena occurring under large oscillatory shear are interpreted in the context of transient networks.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.