Effect of Morphology on the Transport of Gases in Block Copolymers

David J. Kinning; Edwin L. Thomas; Julio M. Ottino

doi:10.1021/ma00171a043

Effect of Morphology on the Transport of Gases in Block Copolymers

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

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Abstract

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 language	English (US)
Pages (from-to)	1129-1133
Number of pages	5
Journal	Macromolecules
Volume	20
Issue number	5
DOIs	https://doi.org/10.1021/ma00171a043
State	Published - Sep 1 1987

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "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.",

author = "Kinning, {David J.} and Thomas, {Edwin L.} and Ottino, {Julio M.}",

year = "1987",

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AU - Kinning, David J.

AU - Thomas, Edwin L.

AU - Ottino, Julio M.

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N2 - 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.

AB - 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.

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Effect of Morphology on the Transport of Gases in Block Copolymers

Abstract

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