Abstract
A polymerizable room temperature ionic liquid (RTIL), 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) - triethylamine (TEA), was synthesized by neutralization of AMPS with TEA in acetone followed by evaporation of the solvent under a reduced pressure at room temperature. The RTIL was characterized with fourier transform infrared spectroscopy, differential scanning calorimetry (DSC), and 1H NMR. Co-polymeric gels of the RTIL with acrylamide (AAm) were prepared by aqueous solution polymerization using N,N′-methylenebisacrylamide as a crosslinker, and ammonium persulfate as an initiator. Superabsorbency of the gels in aqueous and a series of organic liquids was investigated gravimetrically. DSC data showed that the glass transition temperature of AMPS - TEA was 59.4 °C. Poly (AMPS - TEA-co-AAm) gels exhibited superabsorbency in both water and a series of organic solvents. The mechanism for swelling in aqueous and organic media of the gels was critically discussed.
Original language | English |
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Pages (from-to) | 140-146 |
Number of pages | 7 |
Journal | Designed Monomers and Polymers |
Volume | 17 |
Issue number | 2 |
DOIs | |
Publication status | Published - 17 Feb 2014 |
Keywords
- 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS)
- triethylamine (TEA)
- room temperature ionic liquid (RTIL)
- acrylamide
- superabsorbency
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Susan Sandeman
- School of Applied Sciences - Professor of Biomaterials and Tissue Eng.
- Applied Chemical Sciences Research Excellence Group
- Centre for Lifelong Health
- Centre for Regenerative Medicine and Devices
Person: Academic