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Aromatic polyesters (polyarylates) containing arylene sulfone ether linkages
Author(s) -
Idage Bhaskar B.,
Idage Susheela B.,
Vernekar Subhash P.
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990290402
Subject(s) - arylene , polyester , thermogravimetric analysis , condensation polymer , differential scanning calorimetry , polymer chemistry , ether , sulfone , materials science , thermal decomposition , aqueous solution , chemistry , organic chemistry , polymer , aryl , alkyl , physics , thermodynamics
A series of soluble aromatic polyesters (polyarylates) containing arylene sulfone ether linkages and having inherent viscosities of 0.36–1.10 dl/g were prepared by the two‐phase low temperature polycondensation of 4,4′‐[sulfonyl‐bis( p ‐phenyleneoxy)]dibenzoyl chloride and 3,3′‐[sulfonylbis( p ‐phenyleneoxy)]‐dibenzoyl chloride with various bisphenols in an organic solvent‐aqueous alkaline solution system in the presence of a phase transfer catalyst. Bisphenols 4,4′‐[sulfonylbis( p ‐phenyleneoxy)]diphenol and 3,3′‐[sulfonylbis( p ‐phenyleneoxy)]‐diphenol were synthesized in quantitative yields by an improved procedure. The aromatic polyesters prepared were characterized by infrared spectroscopy, elemental analysis, solution viscosity, thermogravimetric analysis, differential scanning calorimetry and X‐ray diffraction. The polyesters prepared had glass transition temperatures in the range 150–230°C and initial decomposition temperatures of 397–491°C. They gave transparent, tough and flexible films by the solution casting technique.