Effect of Morphology on the Transport of Gases in Block Copolymers

David J. Kinning*, Edwin L. Thomas, Julio M. Ottino

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

71 Scopus citations


Transport studies of CO2 in several solvent-cast poly(styrene-co-butadiene) block copolymers of controlled morphology are presented. The morphology is documented by means of transmission electron microscopy and the transport is examined by means of sorption. The transport properties predicted by simple models involving ordered microstructures agree surprisingly well with the experimental results. Transport studies are a sensitive measure of the connectedness of the most conductive phase (polybutadiene). By change of the composition of the copolymer or the casting solvent, the microdomain morphology, i.e., the connectedness of the polybutadiene domains, can be systematically changed. The variation in effective diffusion as a function of domain morphology is well captured by the models.

Original languageEnglish (US)
Pages (from-to)1129-1133
Number of pages5
Issue number5
StatePublished - Sep 1 1987

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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