Compositions comprising a fluoropolymer having interpolymerized units
derived from a nitrogen-containing cure site monomer and a catalyst composition
are provided. The catalyst composition includes a compound having the general formula:
or the precursors thereof, wherein R is a nonfluorinated, partially fluorinated,
or perfluorinated alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl or aralkyl, A
is an acid- or acid-derivative anion, Q is phosphorous, sulfur, nitrogen, arsenic,
or antimony, and each R is hydrogen or an alkyl, aryl, aralkyl, or alkenyl
group, k is the valence of Q; and optionally (c) an alcohol of the formula R2OH,
wherein R2 is an alkyl group which can be fluorinated.
Also provided are a method of making a fluoropolymer, a method of increasing
induction time, and fluoropolymer articles containing curable or cured fluoropolymer compositions.
