Sterically encumbered poly(arylene ether)s containing spiro-annulated substituents: Synthesis and thermal properties
Article first published online: 3 NOV 2010
Copyright © 2010 Wiley Periodicals, Inc.
Journal of Polymer Science Part A: Polymer Chemistry
Volume 48, Issue 24, pages 5872–5884, 15 December 2010
How to Cite
Huang, W. Y., Chang, M. Y., Han, Y. K. and Huang, P. T. (2010), Sterically encumbered poly(arylene ether)s containing spiro-annulated substituents: Synthesis and thermal properties. J. Polym. Sci. A Polym. Chem., 48: 5872–5884. doi: 10.1002/pola.24398
- Issue published online: 16 NOV 2010
- Article first published online: 3 NOV 2010
- Manuscript Accepted: 9 SEP 2010
- Manuscript Received: 14 JUL 2010
- National Science Council of Taiwan. Grant Numbers: NSC 97-2221-E-110-008, NSC 99-2221-E-110-003
- Evervictory Acutech Co.
- glass transition;
- poly(phenylene oxide)
Four novel 2-trifluoromethyl-activated bisfluoro monomers have been synthesized successfully using a Suzuki-coupling reaction of 3-trifluoromethyl-4-fluoro phenyl boronic acid with 2,7-dibromofluorene with varied pendants. Four monomers were converted to a series of fluorene-based poly(arylene ether)s with pendants by nucleophilic displacement of the fluorine atoms on the terminal benzene ring with 4,4′-hexafluoroisopropylidenediphenol. The polymers obtained by displacement of the fluorine atoms, exhibit weight-average molecular weight up to 9.89 × 104 g/mol in GPC. Thermal analysis studies indicated that these polymers did not show melting endotherms but did show relatively high Tg values up to 270 °C in DSC and outstanding thermal stability up to 532 °C for 5% weight loss in TGA in a nitrogen atmosphere. The polymers are soluble in a wide range of organic solvents: THF, CHCl3, NMP, DMAc, DMF, toluene and EAc, and so forth, at room temperature. Transparent and flexible films were easily prepared by solution casting from chloroform solution of each of the polymers. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010