Another preferred embodiment of the invention provides a polymerizable monomer, preferably an acryic or methacrylic acid based monomer, bearing {HEAD ~ an anion exchange site} carrying {TAIL ~ a protonated, fluoride containing anion} of the formula (x F) 
carrying
Another preferred embodiment of the invention provides a polymerizable monomer , preferably an acryic or methacrylic acid based monomer , bearing { HEAD ~ an anion exchange site } carrying { TAIL ~ a protonated , fluoride containing anion } of the formula ( x F )
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH