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Hydrolytic degradation studies on poly(phosphate ester)s
Author(s) -
Narendran N.,
Kishore K.
Publication year - 2002
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.11349
Subject(s) - polymer , copolymer , condensation polymer , hydrolysis , polymer chemistry , polymer degradation , degradation (telecommunications) , materials science , chemistry , organic chemistry , telecommunications , computer science
Eight poly(phosphate ester)s comprising five homopolymers (polymers I–V), two copolymers (polymers VI and VII), and one terpolymer (polymer VIII) were synthesized by interfacial polycondensation of phenyl phosphorodichloridate with various bisphenols. The polymers were characterized by spectroscopic techniques. The copolymer and terpolymer ratios were determined by 1 H‐NMR spectroscopy. The molecular weights of the polymers were determined by end‐group analysis using 31 P‐NMR spectroscopy. Accelerated hydrolytic degradation studies under alkali‐catalyzed conditions showed that the polymer from biphenol (polymer IV) is the most stable and the polymer from thiodiphenol (polymer V) is the least stable. The products of hydrolytic degradation were analyzed and a suitable mechanism for the degradation of the polymers proposed. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 87: 626–631, 2003