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- Title
Synthesis and characterization of novel poly(arylene ether)s based on 9,10âbisâ(4âfluoroâ3âtrifluoromethylphenyl) anthracene and 2,7âbisâ(4âfluoroâ3âtrifluoromethylphenyl) fluorene
- Authors
Arun K. Salunke; Anindita Ghosh; Susanta Banerjee
- Abstract
Two new bisfluoro monomers 9,10âbisâ(4âfluoroâ3âtrifluoromethylphenyl) anthracene and 2,7âbisâ(4âfluoroâ3âtrifluoromethylphenyl) fluorene have been synthesized by the crossâcoupling reaction of 2âfluoroâ3âtrifluoromethyl phenyl boronic acid with 9,10âdibromo anthracene and 2,7âdibromo fluorine, respectively. These two bisfluoro compounds were used to prepare several poly(arylene ether)s by aromatic nucleophilic displacement of fluorine with various bisphenols; such as bisphenolâA, bisphenolâ6F, bishydroxy biphenyl, and 9,9âbisâ(4âhydroxyphenyl)âfluorene. The products obtained by displacement of the fluorine atoms exhibits weightâaverage molar masses up to 1.5 Ã105 g molâ1 and number average molecular weight up to 6.8 à 104 g molâ1 in GPC. These poly(arylene ether)s show very high thermal stability even up to 490°C for 5% weight loss occurring at this temperature in TGA in synthetic air and showed glass transition temperature observed up to 310°C. All the polymers are soluble in a wide range of organic solvents, e.g., CHCl3, THF, NMP, and DMF. Films cast from DMF solution are brittle in nature. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007
- Subjects
ORGANIC compounds; PHYSICAL &; theoretical chemistry; SOLUTION (Chemistry); PHASE transitions
- Publication
Journal of Applied Polymer Science, 2007, Vol 106, Issue 1, p664
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.26726