Premium
Conductivity and structure of melt‐processed polyaniline binary and ternary blends
Author(s) -
Zilberman M.,
Siegmann A.,
Narkis M.
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(200001)11:1<20::aid-pat933>3.0.co;2-7
Subject(s) - polyaniline , materials science , ternary operation , polymer blend , conductive polymer , conductivity , dispersion (optics) , polymer , composite material , chemical engineering , ternary numeral system , plasticizer , polymer chemistry , copolymer , chemistry , polymerization , computer science , programming language , engineering , physics , optics
Abstract In the present study, conductive binary and ternary blends containing polyaniline (PANI) were developed through melt blending. The binary blends' investigation focused on the morphology, in light of the components' interaction, and the resulting electrical conductivity. Similar solubility parameters of a given doped PANI and a matrix polymer lead to dispersion of fine PANI particles within the matrix, and to formation of conducting paths at low PANI contents. A plasticizer acting also as a compatibilizer improves the matrix polymer/PANI interactions. In ternary blends consisting of PANI and two immiscible polymers, the PANI preferrentially locates in one of the components, affecting the blend's morphology. This “concentrating” effect leads to relatively high electrical conductivity at a low PANI content. The electrical conductivity of the studied ternary blends is almost independent of the components' sequence of addition into the hot melt mixing device, exhibiting the selectivity of PANI towards one of the components. Copyright © 2000 John Wiley & Sons, Ltd.