Crosslinkable fluoropolymers

A crosslinkable fluoropolymer [polymer (FC)] comprising:

• first recurring units derived from vinylidene fluoride (VDF),
• from 10% to 50% by moles, with respect to the total moles of recurring units of said polymer (FC), of second recurring units derived from trifluoroethylene (TrFE), and
• from 0.01% to 10% by moles, with respect to the total moles of recurring units of said polymer (FC), of third recurring units derived from at least one functional hydrogenated monomer (H′F), said third recurring units comprising a pendant side chain comprising an end group (E) of any of formulae (III-A) to (V-A):
• —O—C(O)—C(R3)═CR1R2 (III-A)
• —O—C(O)—NH—C(O)—C(R3)═CR1R2 (IV-A)
• —O—C(O)—Z—C(R3)═CR1R2 (V-A)
• wherein each of R1, R2 and R3, equal to or different from each other, is independently a hydrogen atom or a C1-C3 hydrocarbon group, and Z is a bonding group of any of formulae (j) and (jj):
• —NH—X—O—C(O)— (j), and
• —NH—X—NHC(O)O—X′—O—C(O)— (jj)
• wherein X and X′, equal to or different from each other, are independently hydrocarbon groups selected from the group consisting of C1-C20 aliphatic groups, C5-C40 cycloaliphatic groups and C6-C50 aromatic, alkylaromatic and heteroaromatic groups.