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Polypyrrole–poly(heptamethylene p , p ′‐bibenzoate) conducting materials. Synthesis and characterization
Author(s) -
de la Plaza M. A.,
GonzálezTejera M. J.,
de la Blanca E. Sánchez,
Jurado J. R.,
HernándezFuentes I.
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210380413
Subject(s) - polypyrrole , materials science , dopant , conductive polymer , perchlorate , electrochemistry , polymer chemistry , chemical engineering , fourier transform infrared spectroscopy , pyrrole , conductivity , composite number , morphology (biology) , composite material , polymer , doping , chemistry , electrode , organic chemistry , ion , polymerization , optoelectronics , engineering , biology , genetics
Polypyrrole–poly(heptamethylene p , p ′‐bibenzoate) conducting materials, PPy–P7MB/ClO 4 , were obtained by anodic coupling of pyrrole into a polybibenzoate inert matrix, using perchlorate anions as dopant agent. P7MB is a main‐chain liquid crystalline polybibenzoate with adequate mechanical properties and elastic modulus of 1.4GPa at room temperature. The method of synthesis, galvanostatic or potentiostatic electrodeposition, is responsible for differences in the PPy–P7MB/ClO 4 films electrochemical response. FTIR spectra show the complex structures of P7MB and the composite conducting material. The conductivity of PPy–P7MB/ClO 4 films maintains a relatively high value, σ = 13.74Scm −1 , in spite of the insulating effect of polybibenzoate. Film micrographs reveal the typical cauliflower morphology exhibited by polypyrrole and the evolution of film growth with time.