Effects of rotation of benzene rings on diffusion of solvents in polymer melts

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2 Citations (Scopus)

Abstract

Diffusion of a solvent through a polymer is one of the important phenomena in the industry. Such diffusion phenomena, however, have complicated multibody problems, and in general, they are difficult to tightly control. In this study, it was our objective to investigate the effects of the structure of the solvent on the diffusion in polymers, in particular, the effects of the structure on concentration dependence of a mutual diffusion coefficient. Knowledge pertaining to chemical structures and diffusion is very useful for controlling the diffusion phenomena because it allows the design of a solvent possessing the desired diffusion. The diffusion of diphenylsulfide and dibenzothiophene in poly(methyl methacrylate) (PMMA) was investigated. Diphenylsulfide and dibenzothiophene have nearly identical molecular structures and differ in a benzene ring with or without rotation within the molecule. The results indicated that the dependence of the mutual diffusion coefficient was significantly affected by the rotation of the benzene ring present in the molecule.

Original languageEnglish
Pages (from-to)3280-3286
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume50
Issue number6
DOIs
Publication statusPublished - 2011 Mar 16

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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