Nonaqueous proton conducting gel electrolytes

Grażyna Żukowska

Abstract

The purpose of the presented work was to study the mechanism of proton conduction in anhydrous polymer gels. These systems consist of: - poly (vinylidene fluoride) or crosslinked polymetacrylates used as polymer matrix; - various inorganic or organic acids - polar aprotic solvents, such as propylene carbonate, N, N-dimethylformamide, N, N-dimethylacetamide, diethylene glycol dimethyl ether and N- methylpyrrolidone. Additionally, to improve ionic conductivity for some compositions mesoionic compounds were used as additives. The influence of the polymer matrix type, proton donor and solvent used as a plasticiser on the electrical and optical properties is discussed on the basis of spectroscopic studies (impedance, PFG NMR). The interactions between gel components were studied using FTIR and Raman spectroscopy methods. The thermal stability was determined using thermogravimmetry and differential scanning calorimetry. It has been shown that conductivity and the conduction mechanism depends mainly on the type of acid and solvent, whereas type and concentration of the polymer matrix affects the transparency range and mechanical properties of the system.
Diploma typeDoctor of Philosophy
Author Grażyna Żukowska (FC / CICSST)
Grażyna Żukowska,,
- Chair Of Inorganic Chemistry And Solid State Technology
Title in EnglishNonaqueous proton conducting gel electrolytes
Languageen angielski
Certifying UnitFaculty of Chemistry (FC)
Disciplinechemistry / (chemical sciences domain) / (physical sciences)
Defense Date02-07-2001
Supervisor Władysław Wieczorek (FC / CICSST)
Władysław Wieczorek,,
- Chair Of Inorganic Chemistry And Solid State Technology

Pages132
Keywords in Polishelektrochemia, elektrolity, żele, przewodniki jonowe, polimery przewodzące, materiały inteligentne, spektroskopia ramana, prace doktorskie
Abstract in EnglishThe purpose of the presented work was to study the mechanism of proton conduction in anhydrous polymer gels. These systems consist of: - poly (vinylidene fluoride) or crosslinked polymetacrylates used as polymer matrix; - various inorganic or organic acids - polar aprotic solvents, such as propylene carbonate, N, N-dimethylformamide, N, N-dimethylacetamide, diethylene glycol dimethyl ether and N- methylpyrrolidone. Additionally, to improve ionic conductivity for some compositions mesoionic compounds were used as additives. The influence of the polymer matrix type, proton donor and solvent used as a plasticiser on the electrical and optical properties is discussed on the basis of spectroscopic studies (impedance, PFG NMR). The interactions between gel components were studied using FTIR and Raman spectroscopy methods. The thermal stability was determined using thermogravimmetry and differential scanning calorimetry. It has been shown that conductivity and the conduction mechanism depends mainly on the type of acid and solvent, whereas type and concentration of the polymer matrix affects the transparency range and mechanical properties of the system.
Thesis file
Zukowska_Grazyna_nonaqueous.pdf 3.17 MB
Citation count*4 (2015-07-23)

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