ESR Study of the Mechanism of Direct Fluorination of the Fluorine Containing Polymers

摘要

Mechanisms of fluorination of fluorine containing polymers and copolymers are discussed. The photo destruction of the radicals formed at these processes is considered. Direct fluorination of polyvinylidenefluoride (PVDF) and the copolymer of tetrafluoroethylene with ethylene (CTE) by molecular fluorine were studied at 35-300 K. The fluorinated polymers were studied by energy dispersion microscopy (EDAX). Based on the EDAX data, PVDF has the approximately same fluorine content before and after fluorination. In contrast, the fluorine content in CTE increases (approx 2 percent) after fluorination.