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Polymers, composites, and characterization of conducting polyfuran and poly(2‐bromoaniline)
Author(s) -
Gök Ayşegül,
Sari Bekir,
Talu Muzaffer
Publication year - 2005
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/app.22404
Subject(s) - thermal stability , materials science , polymerization , polymer , fourier transform infrared spectroscopy , polymer chemistry , composite material , nuclear chemistry , chemical engineering , chemistry , organic chemistry , engineering
Abstract Polyfuran (PFu), poly(2‐bromoaniline) (P2BrAn), and poly(2‐bromoaniline)/polyfuran (P2BrAn/PFu) composites were synthesized by coupling using various solvents and oxidants. 2‐Bromoaniline (2BrAn) was polymerized using FeCl 3 and (NH 4 ) 2 S 2 O 8 in aqueous HCl medium. PFu was synthesized using FeCl 3 and SbCl 3 in anhydrous media (CHCl 3 , CH 3 CN). Furan was polymerized using both salts in CHCl 3 medium, whereas it could be polymerized using only FeCl 3 in CH 3 CN medium. The new electrically conducting composites were prepared by chemical oxidative polymerization using polyfuran synthesized with SbCl 3 and poly(2‐bromoaniline). The polymers and composites were characterized using conductivity, magnetic susceptibility, infrared spectra (FTIR), UV‐Vis spectra, thermal analysis (TGA), and scanning electron microscopy (SEM) measurements. It was found that PFu(SbCl 3 ) has the lowest thermal stability. Thus, the thermal stability of PFu was increased by preparing composites. The chemical structures of P2BrAns and composites have been found from UV‐Vis results to contain quinone‐imine units along the polymer chain. Magnetic susceptibility measurements indicated that the polymers and composites were diamagnetic or paramagnetic. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 2048–2057, 2005