Effect of temperature on the interactions between low bandgap polymer and ionic liquids

Pankaj Attri, Seung Hyun Lee, Sun Woo Hwang, Joong Il Kim, Won Jang, Young Beom Kim, Jung Ho Park, Gi Chung Kwon, Eun Ha Choi, In Tae Kim

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Abstract In this paper, we have examined the effect of temperature on the interactions between imidazolium and ammonium based ionic liquids (ILs) and the low bandgap polymer (poly(2-heptadecyl-4-vinylthieno[3,4-d]thiazole) (PHVTT)). With the aim of exploring the utility of low bandgap polymers, we have carried out the interaction studies of the polymer with the ILs and investigated the behavior of polymer in the presence of ILs as the function of temperature. Recently, ILs have attracted extensive attention in polymer sciences. In this work, we have studied the temperature dependent interactions between the protic IL (1-methylimidazolium chloride ([Mim]Cl) from imidazolium family) and aprotic ILs (tributylmethylammonium methyl sulfate ([N1444][MeSO 4]) from ammonium family and 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) from imidazolium family) with a low bandgap polymer. Our experimental data of UV-vis spectroscopy, photoluminescence (PL) spectroscopy, FT-IR spectroscopy, density (ρ) and speed of sound (u) as a function of temperature from 25 to 40 C with the interval of 5 C, clearly reveal that even at high temperature, [Bmim]Cl interacts strongly with the polymer as compared to other studied ILs.

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalThermochimica Acta
Publication statusPublished - Mar 10 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Effect of temperature on the interactions between low bandgap polymer and ionic liquids'. Together they form a unique fingerprint.

Cite this