Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Thermochimica acta, 2014-03, Vol.579, p.15-21

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •We report interactions between low bandgap polymer and ionic liquids.•Ammonium and imidazolium families’ ionic liquids are studied.•Temperature dependent interactions are studied.•Aprotic ionic liquid interacts more strongly than protic ionic liquid.•The intermolecular interactions were analyzed on the basis of properties. 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][MeSO4]) 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.