The effect of compaction pressure on the conductivity and structure in undoped poly(1,4-phenylene) (PPP)

Poly(paraphenylene) has been prepared according to two different procedures. The d.c. conductivity
measurements, obtained under compaction pressure, were correlated to the structural modifications
undergone in the same pressure range. X-ray diffraction line profile analysis has been applied to determine the
variations in the microstructural parameters.