Synthesis of the polymerizable room temperature ionic liquid AMPS – TEA and superabsorbency for organic liquids of its copolymeric gels with acrylamide

Tingting Weng, Guo Jianwei, L. Xinming, C. Yingde, Yang Xuejiao, Kun Zhang, Buning Zhang, Guoqiang Yin, Sergey Mikhalovsky, Lyuba Mikhalovska, Irina Savina, Carol Howell, Susan Sandeman

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)140-146
Number of pages7
JournalDesigned Monomers and Polymers
Volume17
Issue number2
DOIs
Publication statusPublished - 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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