title: Molecular interactions in high conductive gel electrolytes based on low molecular weight gelator.
abstract: Organic ionic gel (OIG) electrolytes, also known as gel electrolytes or ionogels are one example of modern functional materials with the potential to use in wide range of electrochemical applications. The functionality of OIGs arises from the thermally reversible solidification of electrolytes or ionic liquids and their superior ionic conductivity. To understand and to predict the properties of these systems it is important to get the knowledge about the interactions on molecular level between the solid gelator matrix and the electrolyte solution. This paper reports the spectroscopic studies (FT-IR, UV-Vis and Raman) of the gel electrolyte based on low molecular weight gelator methyl-4,6-O-(p-nitrobenzylidene)-α-d-glucopyranoside and solution of quaternary ammonium salt, tetramethylammonium bromide. The solidification process was based on sol-gel technique. Below characteristic temperature, defined as gel to sol phase transition temperature, Tgs, the samples were solid-like and showed high conductivity values of the same order as observed for pure liquid electrolytes. The investigations were performed for a OIGs in a wide range of molar concentrations of the electrolyte solution.
authors.affiliation: Institute of Molecular Physics Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland. Electronic address: bielejewski@ifmpan.poznan.pl.
authors.forename: Michał
authors.initials: M
authors.lastname: Bielejewski
authors.affiliation: Institute of Molecular Physics Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Łapiński
authors.affiliation: Maria Curie-Skłodowska University, Department of Organic Chemistry, ul. Gliniana 33, 20-614 Lublin, Poland.
authors.forename: Oleg
authors.initials: O
authors.lastname: Demchuk
keywords: Electric conductivity; FT-IR, Raman and UV–Vis spectroscopy; Gel electrolytes; Hydrogen bonding; Ionic interactions; Low molecular weight gelator