Selective phosphorylation of hydroxyphenols for forming reactive flame retardants

A. Toldy, P. Anna, Gy Marosi, Gy Keglevich, X. Almeras, M. Le Bras

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Monophosphorylated hydroxy phenols were synthesized in a selective way and incorporated in different percentages into epoxy resins as reactive flame retardants. The LOI values of the epoxy resin samples could be increased this way up to 28%. The DSC results show that by increasing the percentage of incorporated monophosphorylated hydroquinone (HMP), the exothermic effect of the curing is decreased, which implies lower network density. An optimum balance is necessary between the flame retardant effect, determined by percentage of HMP, and the lower degree of crosslinking.

Original languageEnglish
Pages (from-to)317-323
Number of pages7
JournalPolymer Degradation and Stability
Volume82
Issue number2
DOIs
Publication statusPublished - Oct 22 2003

Keywords

  • Epoxy resin
  • Monophosphorylated hydroxyphenols
  • Reactive flame retardant

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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