Journal
ELECTROCHIMICA ACTA
Volume 50, Issue 7-8, Pages 1453-1460Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2004.10.035
Keywords
pi-conjugated polymer; organometallic polycondensation; electrochemical response; diffusion coefficient
Categories
Ask authors/readers for more resources
Various electrochemically active pi-conjugated polymers were synthesized by organometallic polycondensations. p-Dopable polymers such as polypyrrole, polythiophene, and polyselenophene exhibited a linear correlation between the ionization potential of the corresponding monomeric compound and the oxidation potential of the pi-conjugated polymer with a slope of about 1.5. On the other hand, n-dopable polymers containing imine nitrogen or quinone unit showed linear correlation with a slope of about 0.75 between the electron affinity of the corresponding monomeric compound and the reduction potential of the polymer. Cyclic voltammetric analysis in solutions indicated that the oxidation peak current (i(pa)) is proportional to a square root of the sweep rate (v(1/2)) in many cases. For poly(3-hexylthiophene-2,5-diyl), the diffusion coefficient (D) calculated with the Matsuda's equation was 10(-7) cm(2) s(-1) at a molecular weight of about 3000, and it decreased steeply with increase in the molecular weight. (C) 2004 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available