Document Type

Thesis

Date of Degree Completion

Spring 2013

Degree Name

Bachelor of Science

Department

Chemistry

Committee Chair

Dr. Dion Rivera, Department of Chemistry

Second Committee Member

Dr. Yingbin Ge, Department of Chemistry

Third Committee Member

Dr. Audrey D. Huerta, Director Science Honors Research Program

Abstract

The stabilization of electrochemically reactive compounds can lead to new breakthroughs in energy storage technology. This study focused on the oxidation­reduction (redox) stabilization of indigo tetrasulfonate (ITS) from oxidation by oxygen, by forming a columbic complex with, poly(diallyldimethylammonium chloride) (poly(DADMAC)). Cyclic voltammetry was investigated as a tool to analyze such a complex solution of electrochemically active macromolecules. Complex scans were taken of poly(DADMAC) to ITS at 1 :20, 1 :6. 7 and 11: 13 molar ratios. Comparison of the redox potentials from the cathodic and anodic sweeps show that the redox of ITS is non­reversible. The presence of the polyelectrolyte was found to enhance the redox of ITS and have a concentration dependent stabilization. However, by increasing concentration of the poly(DADMAC) to higher ratios, the redox reaction became reversible. This finding is contrary to published literature and more analysis will be conducted to test this system.

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