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Electrochemical Properties of Polypyrrole Doped by Alternating Polymer Micelles
Author(s) -
Gryczan Piotr,
Kisiel Anna,
Michalska Agata,
Maksymiuk Krzysztof
Publication year - 2015
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400582
Subject(s) - polypyrrole , electrochemistry , doping , micelle , polymer , materials science , conductive polymer , chemical engineering , nanotechnology , chemistry , electrode , organic chemistry , composite material , optoelectronics , polymerization , aqueous solution , engineering
Micelles composed of alternating polymer – poly(maleic anhydride alt ‐1‐octadecene) (crosslinked and hydrolyzed) of diameter close to 200 nm were incorporated to polypyrrole films in course of potentiostatic polymerization. In this way a novel composite material was obtained with quite unique properties compared to typical polypyrrole. In the present case micelles possessing negatively charged carboxyl groups served as counter ions. The presence of micelles determines nontypical properties of the films such as separate potential ranges corresponding either to cation‐ and anion‐exchange or to low concentration of mobile ions. Factors affecting sensitivity to ions of different charges are discussed. Due to presence of carboxyl groups in the micelles, the obtained films exhibit pH sensitivity, both in potentiometric and voltammetric measurements mode.