Synthesis and characterization of hindered polyphosphazenes via functionalized intermediates: Exploratory models for electro-optical materials

Harry R. Allcock, Ramakrishna Ravikiran, Michael A. Olshavsky

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Several cosubstituent polyphosphazenes were synthesized that incorporate the nonlinear optical chromophore, disperse red 1 (DR-1), linked covalently to the polymer backbone through spacer groups. These polymers have a high chromophore loading (one DR-1 per repeat unit), have glass transition temperatures near 100°C, and are high refractive index materials (n = ∼1.71). The syntheses were achieved via unconventional reactions that involve functionalized poly(organophosphazenes). Disperse red-1 was linked to the polymers by two different methods that generate either an ester- or an ether-linked system. Techniques such as 1H, 13C, and 31P NMR, gel permeation chromatography, differential scanning calorimetry, UV-vis spectroscopy, and optical birefringence were used to monitor the structures.

Original languageEnglish (US)
Pages (from-to)5206-5214
Number of pages9
JournalMacromolecules
Volume31
Issue number16
DOIs
StatePublished - Aug 11 1998

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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