화학공학소재연구정보센터
Journal of Materials Science, Vol.45, No.12, 3325-3330, 2010
Physicochemical and morphological properties of poly(aniline-co-pyrrole)
Copolymers of aniline and pyrrole have been prepared by chemical oxidative-polymerization of aniline and pyrrole using ammonium per sulphate and ferric chloride as oxidants. The structural and morphological properties were studied by X-ray diffraction and scanning electron microscopy. Both copolymers showed an amorphous behaviour compared to their homopolymers. SEM micrographs of poly(aniline-pyrrole) copolymer showed agglomerated spherical structures where as poly(2,5-dimethoxyaniline-pyrrole) showed disordered structures of spherical agglomerates. The copolymers showed improved UV-Vis absorption with the broad peak from 450 to 850 nm. The copolymers exhibited a lower conductivity compared to the homopolymers due to the unsuccessful complex between PANI and PPy, induced by the use of APS as the oxidant.