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Preparation of electrically conducting polypyrrole in oil/water microemulsion
Author(s) -
Yan Feng,
Xue Gi,
Zhou Mingshi
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(20000705)77:1<135::aid-app18>3.0.co;2-b
Subject(s) - polypyrrole , microemulsion , materials science , thermal stability , polymerization , emulsion polymerization , chemical engineering , dopant , polymer chemistry , polymer , emulsion , conductive polymer , composite material , doping , pulmonary surfactant , engineering , optoelectronics
Nanoscopic conducting polypyrrole powder was prepared in an oil/water microemulsion with FeCl 3 as a dopant. Compared with solution and conventional emulsion polymerizations, a microemulsion polymerization system increases the yield of the resultant polypyrrole. The results of FTIR spectra and thermal analysis studies indicate that the microemulsion polymerization system increased the extent of the π‐conjugation length along the polymer backbone and ordered the arrangement of the macromolecule chains. These two effects bring about enhanced conductivity as well as higher thermal stability of polypyrrole. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 135–140, 2000