Patent ID: 7217781

Claim:
A polyphosphazene polymer having the formula: wherein, in each monomeric unit of said polymer, each R is the same or different, and wherein at least a portion of the R groups are R 1 groups, and at least a portion of the R groups are R 2 groups, wherein R 1 has the formula: —Y 1 -X 1 -Z 1 , wherein Y 1 is oxygen, nitrogen, or sulfur, X 1 is selected from the group consisting of alkyl, aryl, aralkyl, alkylaryl, allyl, alkoxy, aryloxy, alkylarloxy, alkylamino, arylamino, and alkylarylamino, and Z 1 is an anionic moiety selected from the group consisting of carboxylic acid moieties, sulfonic acid moieties, phosphonic acid moieties, or salts thereof: R 2 has the formula: —Y 2 -X 2 -Z 2 , wherein Y 2 is oxygen, nitrogen, or sulfur, X 2 is selected from the group consisting of alkyl, aryl, aralkyl, alkylaryl, allyl, alkoxy, aryloxy, alkylaryloxy, alkylamino, arylamino, and alkylarylamino, and Z 2 is a fluorine-containing moiety; and n is from about 10 to about 300,000.