| http://www.w3.org/ns/prov#value | - The most preferred monomers are tetrafluoroethylene, chlorotrifluoroethane, vinylidene fluoride (CF2 CH2) and an unsaturated perfluoro ether described by CF2 ???CF--O--(--R4 --O--)t --R4, where each R4 is or C6 -C12 aryl radical, and t is an integer from 0 to 5 inclusive.
|
