Date of Award
Chemistry and Biochemistry
The overall goal of work in this field is to improve materials for use in a variety of applications in fuel cell and battery production. This thesis specifically investigates the synthesis of two variations of a methyl (polyethylene glycol) comb polymer electrolyte (MePEGnwhere n=7) to understand how the molecular structure of an ion-conducting polymer affects its electrochemical properties. The MePEG used in this synthesis contains seven ethylene glycol groups and was added to a poly (methylhydrosiloxane) comb polymer backbone. In the first sample, the polymer contained only the MePEG sidechain, and in the second sample, the polymer contained a mixture of MePEG sidechains and alkyl bromide sidechains. In additional synthesis steps, these polymers were acidified with lithium and sulfonic acid (SO3H). These polymer electrolytes were synthesized in order to study ionic conductivity, which would ultimately be used to determine efficiency for possible application in fuel cells.
Fox, Olivia, "Synthesis and Conductivity Analysis of a Methyl (Polyethylene Glycol) Comb Polymer" (2021). Honors Theses. 1884.