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Novel high‐ T g , high‐strength poly(aryl ether) containing quadrephenyl unit
Author(s) -
Banerjee Susanta,
Maier Gerhard,
Salunke Arun,
Madhra Mukesh
Publication year - 2001
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.2172
Subject(s) - polymer chemistry , glass transition , ether , thermal stability , thermogravimetric analysis , differential scanning calorimetry , aryl , materials science , gel permeation chromatography , polymer , monomer , tetrahydrofuran , dynamic mechanical analysis , bisphenol , chemistry , organic chemistry , alkyl , solvent , composite material , physics , epoxy , thermodynamics
A novel poly(aryl ether) was prepared by nucleophilic displacement of the fluorine atoms of a 2‐perfluoro‐activated bisfluoro monomer with bisphenol A. The polymer exhibited a weight average molar mass of 3.15 × 10 5 g mol −1 according to gel permeation chromatography. The poly(aryl ether) showed very good thermal stability, with only a 5% weight loss at 493°C according to thermogravimetric analysis under synthetic air, and it had a glass‐transition temperature at 223°C according to differential scanning calorimetry and at 243°C according to dynamic mechanical thermal analysis. The polymer was soluble in a wide range of organic solvents, including CHCl 3 , tetrahydrofuran, NMP, dimethylformamide (DMF), and toluene, and was insoluble in dimethyl sulfoxide and acetone. Transparent thin films of the polymer, cast from DMF, exhibited a tensile strength of 65 MPa, a modulus of 2.62 GPa, and an elongation at break of 130%. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3149–3156, 2001
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