Analysis of novel ionenes via X-ray and neutron scattering

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2016-08-23
Identifier: 
etd9773
Keywords: 
Thesis
Polymer Physics
Physical Chemistry
X-ray Scattering
Neutron Scattering
Molecular Dynamics
Abstract: 

This thesis narrates the analysis of a novel series of polybenzimidazole-based ionenes via X-ray scattering, neutron scattering, and molecular dynamics simulation. The ionenes have been reported as stable hydroxide-conducting solid polymer electrolytes. Robust anionexchange membranes with strong conductivity are necessary for the wide application of anion-exchange membrane fuel cells, which are a compelling alternative to the internal combustion engine. Three length scales were observed: ion-polymer, polymer-polymer (and ion-ion), and the monomer length. No structure was visible above the monomer length, which is rare in high-performance ion-conducting membranes. In a preliminary molecular dynamics simulation, water molcules were observed forming bridges between anions, even at a low level of hydration.

Document type: 
Thesis
Rights: 
This thesis may be printed or downloaded for non-commercial research and scholarly purposes. Copyright remains with the author.
File(s): 
Senior supervisor: 
Barbara Frisken
Department: 
Science: Department of Physics
Thesis type: 
(Thesis) M.Sc.
Statistics: