Polymer Bulletin

, Volume 68, Issue 4, pp 901–908 | Cite as

Synthesis and characterization of branched polymeric ionic liquids with imidazolium chloride segments

  • Ananda S. Amarasekara
  • Brandon Callis
  • Bernard Wiredu
Original Paper

Abstract

A branched polymeric ionic liquid (PIL) with imidazolium cation segments in the main chain connecting branching points was prepared in 95% yield by heating an equimolar mixture of 1,3,5-tris-(4-chlorobutoxy)-benzene and 1,3,5-tris-(4-imidazol-1-yl-butoxy)-benzene at 80 °C for 16 h. Similarly, condensation of a mixture of 1,3,5-tris-(4-imidazol-1-yl-butoxy)-benzene and 1,4-dichlorobutane in 1:1.5 molar ratio produced a second branched PIL in 94% yield. These branched PILs were characterized by FT-IR, 1H, 13C NMR, TGA, and elemental analysis.

Keywords

Polymeric ionic liquid Imidazolium cation Branched polymer 

Notes

Acknowledgments

Authors would like to thank Center for Environmentally Beneficial Catalysis (CEBC)—University of Kansas, American Chemical Society-PRF grant UR1-49436 and NSF grant CBET-0929970 for financial support.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Ananda S. Amarasekara
    • 1
  • Brandon Callis
    • 1
  • Bernard Wiredu
    • 1
  1. 1.Department of ChemistryPrairie View A&M UniversityPrairie ViewUSA

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