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Influence of Irradiation Temperature on Grafting of Styrene into Poly(tetrafluoroethylene-co-hexafluoropropylene) Films

✍ Scribed by Uwe Lappan; Uwe Geißler; Uwe Gohs; Steffi Uhlmann

Book ID
102487395
Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
485 KB
Volume
294
Category
Article
ISSN
1438-7492

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✦ Synopsis

Abstract

This study concerns with the investigation of the effect of irradiation conditions on grafting of styrene into FEP films by the pre‐irradiation method. EPR spectroscopy was used to characterize the base polymer material regarding the trapped radical species and their concentration. Radiation‐induced changes in the chemical structure were studied by IR spectroscopy. Tensile strength and elongation at break as well as yield of grafting were found to be strongly influenced by irradiation temperature. Main‐chain scissions were identified to be the reason for the deterioration of the mechanical properties after radiation treatment at temperatures below glass transition temperature.

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