TSD STUDY OF PURE AND CHLORANIL DOPED POLYSTYRENE FILMS GROWN FROM SOLUTIONS

Three peaks, namely, α, βand peaks, have been observed in the TSD spectra of commercial polystyrene (PS) at about 338, 368, and 418 K respectively. Their origin is due respectively to the trapping of charge carriers by the particular atoms or molecules pressent in the amorphous regions of polystyrene, to the segmental motion of main chains, and to the accumulation of space charges at the crystalline and amorphous interfaces. Doping of polystyrene with chloranil [electron affinity 1.4 eV (2.24×10-19J)has been found to form charge-transfer complexes. This probably involves three mechanisms&and&and#x0023;x003A; increase in the mobility of charge carriers, reduction in the trapping sites for charges, and provision of conductive path ways for them through the crystalline-amorphous interfaces. © 1979, The Society of Polymer Science, Japan. All rights reserved.