Synthesis and some properties of anthracene and anthraquinone incorporated poly(vinyl chloride) and the ion exchange resin therefrom

✍ Scribed by Mukul Biswas; Amitava Majumdar

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Weight: 531 KB
• Volume: 38
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1989.070380905

✦ Synopsis

Poly(viny1 chloride) has been modified by chlorine displacement reaction with 2-anthrol and anthraquinone-2-01. 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 X lo7 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 t o oxidative degradation of the PVC matrix.