Synthesis of hydrogels by polymerization of itaconic acid–choline chloride deep eutectic solvent
Article first published online: 9 MAR 2014
Copyright © 2014 Wiley Periodicals, Inc.
Journal of Applied Polymer Science
Volume 131, Issue 16, 15 August 2014
How to Cite
2014), Synthesis of hydrogels by polymerization of itaconic acid–choline chloride deep eutectic solvent. J. Appl. Polym. Sci., 131, 40608, doi: 10.1002/app.40608, , , and (
- Issue published online: 20 MAY 2014
- Article first published online: 9 MAR 2014
- Manuscript Accepted: 16 FEB 2014
- Manuscript Received: 4 NOV 2013
- ionic liquids;
- radical polymerization
Itaconic acid (IA)–choline chloride (CC) deep eutectic solvents (DES) were prepared and characterized by NMR, TGA, and DSC. Poly(itaconic acid–co–bisacrylamide) hydrogels were synthesized by in situ polymerization-crosslinking of the DES. For comparison, the hydrogels were also prepared in water under the same process conditions, that is, temperature, time, initial concentration of the monomer, the initiator, and N,N′-methylenebisacrylamide (BAA) as the cross-linking agent. Chemical structure of the polymers was proved by elemental analysis and FTIR. The values of insoluble gel fraction and water swelling of obtained hydrogels suggest that polymers prepared in DES have higher cross-link density. Preliminary comparative studies of polymerization of IA in water and in DES medium indicated higher polymerization rate resulting from the presence of the choline salt, what might explain properties of the hydrogels prepared in DES. This study shows that DES can be used both as a solvent and catalyst in free-radical polymerization processes. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40608.