Oxidation of monolayers of partly converted dimethoxy-substituted poly(p-phenylenevinylene) precursor polymers at the air-water interface

J.G. Hagting, A.J. Schouten, A Hagting

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Abstract

We observed that the poly(p-phenylenevinylene) units in Langmuir monolayers of partly converted dimethoxy-substituted poly(p-phenylenevinylene) precursor polymers oxidize at the air-water interface. This reaction even happened in the dark and therefore can not be attributed to a photooxygenation reaction with singlet oxygen. We assume that ground-state triplet oxygen is polarized at the air-water interface and forms a weakly bound complex with the double bond to give a reactive intermediate state, which lowers the activation energy of the oxidation reaction. The air-water interface thus works as a catalyst in this reaction.

Original languageEnglish
Pages (from-to)4348-4351
Number of pages4
JournalLangmuir
Volume16
Issue number9
DOIs
Publication statusPublished - 2-May-2000

Keywords

  • LANGMUIR-BLODGETT MONOLAYER
  • TRIPLET MOLECULAR-OXYGEN
  • MULTILAYERS
  • COPOLYMERS
  • STABILITY
  • PPVS

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