Crosslinking of fluoroelastomers by "click" azide-nitrile cycloaddition

Abstract

A fluoroelastomer that bears pendant nitrile groups is crosslinked with a telechelic bis-azido fluorinated curing agent by "click" azide-nitrile cycloaddition. Thermogravimetric analyses of the resulting press cured films reveal an improvement by 20 C of the thermal degradation profile under air, compared to that of the corresponding uncured fluoroelastomer.