Alkyl-substituted poly(2,5-benzophenone)s synthesized via Ni(0)-catalyzed coupling of aromatic dichlorides and their miscible blends

Journal Article

High molecular weight poly(2,5-benzophenone) derivatives were prepared by Ni(0)-catalyzed coupling of 4′-substituted 2,5-dichlorobenzophenones. Monomers were synthesized by the Friedel-Crafts reaction of 2,5-dichlorobenzoyl chloride and alkyl-substituted benzenes in the presence of aluminum chloride. The resulting polymers are soluble and show no evidence of crystallinity by DSC. Number average molecular weights are in the range of 9.2 × 103-11.7 × 103 g/mol by multiple angle laser light scattering (MALLS). Molecular weights obtained by MALLS are only slightly lower (∼90%) than those obtained by GPC (polystyrene standards). These polymers exhibit high thermal stability with glass transition temperatures ranging from 173 to 225°C and weight loss occurring above 450°C in nitrogen and 430°C in air. Additionally, the polymers were blended and the resulting polymer films appear to be miscible by DSC results. © 1998 John Wiley & Sons, Inc.

Full Text

Duke Authors

Cited Authors

  • Pasquale, AJ; Sheares, VV

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 36 / 14

Start / End Page

  • 2611 - 2618

International Standard Serial Number (ISSN)

  • 0887-624X

Digital Object Identifier (DOI)

  • 10.1002/(SICI)1099-0518(199810)36:14<2611::AID-POLA21>3.0.CO;2-K

Citation Source

  • Scopus