Spectroscopy studies on conductive polyaniline - polyimide blend films
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Date
2011
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Abstract
Conducting films of ±10 camphorsulfonic acid (C.SA)-iloped polyaniline / polyimide
(PAMI/Pl) blends with vaiinns compositions were prepared by solvent casting process. The
molecular level interaction in these blend films were e.xperimentally characterized by
Fourier transform infrared (FITR). Raman, l.iV-Vi.s anil X-ray diffraction (XKD)
spectroscopic technic|ues. The interacting structure and observed reil shift confirm the
presence of hydrogen bonding helu ecn the carbonyl group ot PI with the amine ol PAN I
that affects the optical band gap (E.). electrical conductivity (n) as w'ell as the morphologi
of the blends. The disappearance of the characteristic peaks ol PAN'1-C.SA after blends with
PI suggests some kind of molecular mixing between the two components and compatibility
betw'een the conducting ami non-conducting polymers.