STUDY ON STABILITY OF STRUCTURE AND PROPERTIES OF TIOPC/SAN PHOTOCONDUCTIVE COMPOSITES

The influence of the condensed structure of poly(styrene-co-acrylonitrile) (SAN) and traces of tetrahydrofuran (THF) that remained in titanyl phthalocyanine (TiOPc)/SAN films after fabrication on the photoconductive stability of TiOPc/SAN composites is studied. The results reveal that the existence of traces of THF results in the increase of the photoconductivity and the charging voltage. The main factors responsible for the unstable photoconductivity of the photoconductors are believed to be the relaxation of SAN and the slow volatilization of THF.