Transport of small molecules in polyolefins. III. Diffusion of topanol CA in ethylene polymers

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Abstract

Transport properties of Topanol CA, [1,1,3‐tris(2‐methyl‐4‐hydroxy‐5‐tert‐butyl‐phenyl)‐butane], were studied in low‐density polyethylene (LDPE), in a blend of low‐density and linear low‐density polyethylenes (LDPE/LLDPE) and in ethylene vinyl acetate copolymer (EVA). The rate of diffusion (D) was evaluated on the free‐volume theory basis. A linear relationship was obtained between In D and the reciprocal fractional free volume of the noncrystalline phase of the polymers. Solubility of the additive is higher in EVA than in polyethylene. Compatibility of Topanol CA with ethylene polymers is poor, the measured solubility values depend on the experimental conditions and thermal history of the additive source. © 1994 John Wiley & Sons, Inc.

Original languageEnglish
Pages (from-to)1581-1589
Number of pages9
JournalJournal of Applied Polymer Science
Volume51
Issue number9
DOIs
Publication statusPublished - Feb 28 1994

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ASJC Scopus subject areas

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

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