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Enhanced Conductivity of Polyaniline by Conjugated Crosslinking
Author(s) -
Yang Yuanyuan,
Chen Shaozhu,
Xu Lan
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201000806
Subject(s) - polyaniline , conductivity , materials science , conductive polymer , fourier transform infrared spectroscopy , x ray photoelectron spectroscopy , polymer chemistry , aniline , peroxydisulfate , triphenylamine , polymer , chemical engineering , analytical chemistry (journal) , chemistry , organic chemistry , composite material , polymerization , potassium , engineering , metallurgy
A novel crosslinked conductive polyaniline (PANI) was prepared by chemically copolymerizing aniline (An) and p ‐phenylenediamine (PPDA) with triphenylamine (TPA) as crosslinker, using ammonium peroxydisulfate (APS) as an oxidant. The effects of different preparation conditions on the electrical conductivity of polymers were systematically investigated by adjusting acid kinds, concentration, the ratio of APS/An, the mounts of TPA and PPDA. The crosslinked PANI displayed a conductivity increase of up to 25% compared with the linear one. Their structures were characterized by Fourier‐transformed infrared spectroscopy and X‐ray photoelectron spectroscopy, and the electrical conductivity was also tested by a typical four‐point probe (RTS‐8) technique.