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Variable Effects during Polymerization

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S. K. Lunsford

Department of Chemistry, Wright State University, Dayton, OH 45435

J. Chem. Educ., 2005, 82 (12), p 1830

DOI: 10.1021/ed082p1830

Publication Date (Web): December 1, 2005

Section:

History, Education, and Documentation

Abstract

We developed a lab experiment in which students polymerize 3-methylthiophene onto a polished platinum electrode surface and optimize the conditions (deposition temperature, monomer concentration, deposition time, applied voltage, and electrolyte concentration) for the selective electrode to determine catechol by utilizing cyclic voltammetry. The students learn to use a potentiostat–galvanostat and a cyclic voltammetry instrument while determining the best parameters to detect catechol.