Abstract
AbstractPoly(vinyl chloride) has been modified by chlorine displacement reaction with 2‐anthrol and anthraquinone‐2‐ol. The condensates (PVC‐ACOL and PVC‐AQOL) are insoluble in all solvents common to PVC and have been characterized by elemental and IR spectra analysis. The initial decomposition temperature of these condensates follow the trend: PVC‐AQOL (250°C) > PVC‐ACOL (200°C) > PVC(190°C) and the overall thermal stabilities beyond 60% decomposition follows the same trend. Permittivity and dielectric loss of these condensates sharply fall with increasing applied frequency (10–1.3 ×107 Hz) to a limiting constant value. In contrast, for unmodified PVC these values are low and remain independent of frequency in the same range. Sulfonation of these PVC condensates affords a weak acid resin with COOH and OH ionogenic groups, but no strong sulfonic acid groups due presumably to oxidative degradation of the PVC matrix.
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