Jp. Yang et al., POLYANILINE POLYPROPYLENE FILM COMPOSITES WITH HIGH ELECTRIC-CONDUCTIVITY AND GOOD MECHANICAL-PROPERTIES/, Journal of applied polymer science, 56(7), 1995, pp. 831-836
Polyaniline/polypropylene composites were prepared by oxidative polyme
rization of aniline in biaxially stretched polypropylene microporous f
ilms with ammonium persulfate as the oxidant. A continuous permeation/
diffusion polymerization process was used in order to incorporate more
polyaniline in the composite. The influence of reaction time and temp
erature and the concentration of monomer and oxidant aqueous solutions
on the electric conductivity of the composites was investigated. The
composites may exhibit a loose particulate surface morphology and a co
mpact surface with a ring-shaped structure. The content and distributi
on of polyaniline in the composite and, hence, its electric conductivi
ty and surface properties can be controlled over a wide range. Composi
tes with the combination of high electric conductivity and good mechan
ical properties can be obtained under proper conditions. The composite
films were flexible and strong enough and have electric conductivity
as high as 5-6 S/cm. (C) 1995 John Wiley and Sons, Inc.