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Browsing Articles by Subject "2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS)"
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Item Open Access Synthesis of the polymerizable room temperature ionic liquid AMPS – TEA and superabsorbency for organic liquids of its copolymeric gels with acrylamide(Designed Monomers and Polymers, 2014) Weng, Tingting; Guo, Jianwei; Li, Xinming; Cui, Yingde; Yang, Xuejiao; Zhang, Kun; Zhang, Buning; Yin, Guoqiang; Mikhalovsky, Sergey V.; Mikhalovska, Lyuba I.; Savina, Irina N.; Howel, Carol A.; Sandeman, Susan R.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.