The direct fluorination of a porous functionalized polymer

Abstract
Macroporous sulfonated polystyrene ion exchange resin was reacted with elemental fluorine in a liquid‐phase suspension reactor at low temperature. This method gave retention of the bulk structure of the resin bead and resulted in a space‐selective distribution of fluorine across the resin bead cross‐section, as determined using 19F secondary ion mass spectroscopy (LMI‐SIMS). The polymer modification was additionally characterized using x‐ray photoelectron spectroscopy, photoacoustic IR spectrophotometry, 19F, and 13C MAS NMR spectrometry, and mercury porosimetry. © 1994 John Wiley & Sons, Inc.