abstract |
The formula (II) is shown in the description, wherein R1 is a semi-, highly- or perfluorinated hydrocarbon residue, and R2 is a residue selected from the group consisting of -C(R3)=C(R3')-R4, wherein R3, R4, R3', are independently from each other selected from the group consisting of H, C1 to C20 alkyl, C2 to C20 alkenyl, C2 to C20 alkinyl. |