2007•Macromolecular SymposiaRequires access

Pre-Irradiation Grafting of Styrene into Modified Fluoropolymers

Uwe Lappan, Uwe Geißler, Steffi Uhlmann

Abstract

Summary: The grafting of styrene into commercially available fluoropolymer films by the pre-irradiation method has been investigated. Poly(tetrafluoroethylene) (PTFE), poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP), poly(tetrafluoroethylene-co-perfluoropropylvinyl ether) (PFA) and poly(tetrafluorethylene-co-ethylene) (ETFE) were chosen as the base polymer material. The influence of the base material, the pre-irradiation dose, and the storage time between the irradiation and the grafting step on the yield of grafting was examined. The base materials were pre-treated by irradiation in the molten state under oxygen-free conditions in order to create branches and cross-links. The effect of pre-treatment on the yield of grafting was studied.

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Available abstract

Key concepts: ETFE, Tetrafluoroethylene, Hexafluoropropylene, Grafting, Fluoropolymer, Materials science, Styrene, Irradiation