Barrier films made with various lamellar block copolymers

Junshan Wang, Jonathan P. DeRocher, Lifeng Wu, Frank S. Bates, E. L. Cussler

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The permeabilities of helium, nitrogen, and oxygen across lamellar block copolymers can be accurately estimated from the properties of the glassy and rubbery blocks. The copolymers tested include poly(styrene-b-isoprene-b-styrene) , poly(styrene-b-butadience-b-styrene), and poly(lactide-b-isoprene-b-lactide). The results show improvements in barrier properties that tend to be larger than those expected from the resistances of lamellae in series. These increases are not as large as those achieved with impermeable fillers like mica and clay. The changes in film elastic modulus caused by glassy lamellae are also discussed.

Original languageEnglish (US)
Pages (from-to)13-21
Number of pages9
JournalJournal of Membrane Science
Volume270
Issue number1-2
DOIs
StatePublished - Feb 15 2006

Fingerprint

Styrene
lamella
block copolymers
styrenes
Block copolymers
polystyrene
Isoprene
mica
fillers
clays
modulus of elasticity
copolymers
permeability
helium
nitrogen
Helium
Elastic Modulus
Mica
oxygen
Fillers

Keywords

  • Barriers
  • Block copolymers
  • Diffusion
  • Lamellae

Cite this

Barrier films made with various lamellar block copolymers. / Wang, Junshan; DeRocher, Jonathan P.; Wu, Lifeng; Bates, Frank S.; Cussler, E. L.

In: Journal of Membrane Science, Vol. 270, No. 1-2, 15.02.2006, p. 13-21.

Research output: Contribution to journalArticle

Wang, Junshan ; DeRocher, Jonathan P. ; Wu, Lifeng ; Bates, Frank S. ; Cussler, E. L. / Barrier films made with various lamellar block copolymers. In: Journal of Membrane Science. 2006 ; Vol. 270, No. 1-2. pp. 13-21.
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