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 journalArticlepeer-review

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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