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. AmarasekaraEmail author
  • Brandon Callis
  • Bernard Wiredu
Original Paper


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.


Polymeric ionic liquid Imidazolium cation Branched polymer 



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
    Email author
  • Brandon Callis
    • 1
  • Bernard Wiredu
    • 1
  1. 1.Department of ChemistryPrairie View A&M UniversityPrairie ViewUSA

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