Polymer/additive compatibility: Study of primary antioxidants in PBD

Enikö Földes, Jan Lohmeijer

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Stabilization of polymers involves chemical and physical processes, and the effectiveness of antioxidants is strongly influenced by their compatibility with the host system. In the case of rubber-modified high-impact polymer blends, the dispersed elastomer phase is generally the most sensitive to thermooxidative degradation. The compatibility of five hindered phenolic antioxidants with polybutadiene (PBD) was studied as a function of temperature. Relationships were found between the diffusion rate and the specific volume of additive, as well as the total free-volume of the polymer/additive system. The solubility of antioxidants was evaluated on the basis of thermodynamic theories. Deviations from thermodynamic expectations are explained in terms of different physical states and self-association of the substances investigated.

Original languageEnglish
Pages (from-to)761-775
Number of pages15
JournalJournal of Applied Polymer Science
Volume65
Issue number4
DOIs
Publication statusPublished - Jul 25 1997

Keywords

  • Additive
  • Antioxidant
  • Compatibility
  • Diffusion
  • Polybutadiene (PBD)
  • Solubility
  • Transport

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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