Cross-linking of polystyrene by Friedel-Crafts chemistry: reaction of p-hydroxymethylbenzyl chloride with polystyrene

Hongyang Yao, Michael A. McKinney, Caroline Dick, John J. Liggat, Colin Snape, Charles A. Wilkie

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

p-Hydroxymethylbenzyl chloride was found to be an effective cross-linking agent for polystyrene. The reaction was found to occur by Friedel-Crafts alkylation between the benzyl alcohol/chloride functional groups in the additive and phenyl ring in polystyrene. The reaction was studied by TGA-IR to monitor the evolution of hydrogen chloride and water, and the structure of the resultant gel was analyzed by solid state NMR and elemental analysis. The potential application in flame-retardancy was evaluated using Cone calorimetry.
Original languageEnglish
Pages (from-to)399-405
Number of pages6
JournalPolymer Degradation and Stability
Volume72
Issue number3
DOIs
Publication statusPublished - Jun 2001

Keywords

  • Friedel-Crafts
  • Polystyrene
  • Fire retardancy
  • Cross-linking
  • Cone calorimetry

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