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Chemical modification of polystyrene. I. Electrophilic substitution of polystyrene with aromatic anhydrides
Author(s) -
Biswas Mukul,
Chatterjee Shakuntala
Publication year - 1982
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.1982.070271019
Subject(s) - polystyrene , phthalic anhydride , electrophilic substitution , electrophilic aromatic substitution , polymer chemistry , polymer , solubility , titration , substitution reaction , chemistry , chemical modification , organic chemistry , materials science , catalysis
Polystyrene has been modified by electrophilic substitution reaction with phthalic anhydride and pyromellitic dianhydride. The products have been characterized by physical characteristics, solubility differences, elemental analysis, infrared spectra, ion‐exchange capacity, and pH metric titration. The ultimate thermal stabilities of these modified polymers are better than the same for the unmodified polystyrene.