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Determination of oxygen permeability of polymers using in-situ photo-generated heptacene ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
27956 44052 2007 5 PDF Available
Title
Determination of oxygen permeability of polymers using in-situ photo-generated heptacene ☆
Abstract

Heptacene generated in-situ in a polymer matrix using a photochemical route undergoes oxidation with diffused oxygen leading to the formation of endoperoxides. We have found the high reactivity of heptacene, a linear poly(acene), toward molecular oxygen can be used to determine oxygen permeability of polymer films. The rate of disappearance of heptacene, due to oxidation, was found to be directly related to the oxygen permeability of the polymer. A simple spectroscopic method to estimate oxygen permeability of polymer films by monitoring the visible/near infra-red absorption of heptacene is described.

Keywords
Heptacene; Photodecarbonylation; Oxygen permeability; Polymer
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Determination of oxygen permeability of polymers using in-situ photo-generated heptacene ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 192, Issue 1, 15 November 2007, Pages 36–40
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us