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Phosphoric acid cation exchange resins from chemically modified polyvinyl chloride
Author(s) -
Biswas Mukul,
Moitra Subrata
Publication year - 1990
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1990.070400924
Subject(s) - polyvinyl chloride , phosphoric acid , ion exchange resin , polymer chemistry , ion exchange , chlorinated polyvinyl chloride , chloride , materials science , chemistry , polymer science , chemical engineering , organic chemistry , ion , engineering
PVC modified by Cl displacement reaction with meta‐aminophenol (MAP), bisphenol A (BISA), and phenolphthalein (PHEN) has been converted into phosphoric acid cation exchange resins. These resins have been characterized in regard to their structure, ion exchange properties, and thermal stability. The ion exchange capacities fall into the range 5.5–8.0 (meq/g) for the resins. The overall thermal stability is considerably higher than that for the corresponding sulfonic acid resins, as well as for the PVC–MAP, PVC–BIS A, and PVC–PHEN condensates. The resins exhibit ca. 4–6% capacity losses under isothermal hydrolytic cleavage at 100°C for 24 h.