Fluorocarbon polymer material and method for synthesizing

A fluorocarbon polymer material which comprises a fluorinated backbone and at least one pendant chain having a quaternary ammonium group, wherein the backbone comprises a unit of the following general formula:

• wherein:
• Z is a quaternary ammonium group,
• Y1 and Y2 are each independently an oxygen heteroatom or a sulphur heteroatom,
• A is a fluorinated or perfluorinated straight chain having from 2 to 6 carbon atoms,
• R1 represents a phenyl or aryl group or a group of the following formula:
• —CR2R3— (2)
• wherein:
• R2 and R3 are identical or different and each selected independently from the group consisting of a straight or branched alkyl group, optionally substituted by one or more halogens,
• R4 is selected from the group consisting of a hydrogen atom, a straight or branched, cyclic or acyclic, alkyl or halogenated alkyl group, and a group represented by the following formula:
• m is an integer comprised between 0 and 10;
• m′, n and r are integers, each independently equal to 0 or 1;
• and
• s is equal to 0 or 1, provided that when s is equal 0, then R4 is different from the hydrogen atom.