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Demonstration of a novel, flexible, photocatalytic oxygen-scavenging polymer film

Paper ID Volume ID Publish Year Pages File Format Full-Text
28693 44085 2006 4 PDF Available
Title
Demonstration of a novel, flexible, photocatalytic oxygen-scavenging polymer film
Abstract

The preparation of a novel, flexible, photocatalytic, oxygen-scavenging polymer film is described. The film incorporates nanocrystalline titania particles in an ethyl cellulose polymer film, with or without an added sacrificial electron donor of triethanolamine. When coated on the inside of a glass vessel its UV-driven light-scavenging action is demonstrated by platinum octaethyl porphyrin coated glass beads sealed inside, since their luminescence increases with increasing UV-irradiation time. When used as a flexible film, work with an oxygen electrode shows that the film is able to scavenge oxygen at an average rate of 0.017 cm3 O2 h−1 cm−2 over a 24 h period, which compares favourably to other, well-established oxygen-scavenger systems. The potential of using such as system for oxygen scavenging in packaging is discussed briefly.

Keywords
Polymer; Photocatalysis; Oxygen-scavenging; Titania
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Demonstration of a novel, flexible, photocatalytic oxygen-scavenging polymer film
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 177, Issues 2–3, 25 January 2006, Pages 328–331
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
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