Influence of crystallization conditions on the structural characteristics of poly(p-phenylene sulfide): Rietveld refinement

A study was undertaken to obtain more accurate structural information on po ly(p-phenylene sulfide) (PPS) through Rietveld analysis. A few samples of P PS crystallized in a relatively wide range of physical conditions were sele cted with the aim of eventually identifying the occurrence of structural mo difications induced by the various crystallization procedures. According to the results, the structural modifications are relatively small and essenti ally confined to variations of the C-S-C angle, for which values within the range 102 degrees-105 degrees were found close to those proposed by Garbar czyk. In particular, the strong influence of the amorphous phase in determi ning the crystallographic cell dimension was investigated. (C) 1998 Kluwer Academic Publishers.