Synthesis of the polymerizable room temperature ionic liquid AMPS – TEA and superabsorbency for organic liquids of its copolymeric gels with acrylamide
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Date
2014
Authors
Weng, Tingting
Guo, Jianwei
Li, Xinming
Cui, Yingde
Yang, Xuejiao
Zhang, Kun
Zhang, Buning
Yin, Guoqiang
Mikhalovsky, Sergey V.
Mikhalovska, Lyuba I.
Journal Title
Journal ISSN
Volume Title
Publisher
Designed Monomers and Polymers
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.
Description
Keywords
2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS), triethylamine (TEA), room temperature ionic liquid (RTIL), acrylamide, superabsorbency
Citation
Weng Tingting et al.(>12), 2014, 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, Vol. 17, No. 2, pp.140–146