Polymerization of vinylidene fluoride-d₂. Minimal regiosequence and branch defects and assignment of preferred chain-growth direction from the deuterium isotope effect

Synthesis and copolymerization of vinylidene fluoride (VDF) with Trifluorovinyl Monomers, 11

“…As expected, the head‐to‐tail VDF units (i.e., produced from normal VDF propagation) of the VDF block are represented by a group of signals in the −91 to −95 ppm range, while the signals centered at −113 and −116 ppm are assigned to the reversed VDF units (i.e., head‐to‐head VDF chaining). These attributions are in good agreement with those already described by various authors for low40 or high molecular weight PVDF,41–48 or for telomers of VDF with perfluoroalkyl iodides,9,13,35,36 α , ω ‐diiodoperfluoroalkanes,37 methanol,2,3 polyhalogenomethanes9–14 or diethyl hydrogen phosphonate 7,8…”

From Vinylidene Fluoride (VDF) to the Applications of VDF-Containing Polymers and Copolymers: Recent Developments and Future Trends

“…The synthesis of deuterated PVDF has also been reported Cais and Kometani 29,56 with higher melting point and molecular weight, and enhanced crystallinity arising from a "more perfect chain structure" than those of "hydrogenated" PVDF. In fact, the maximum remanent polarization attained with deuterated PVDF homopolymer film was 1.0 mC.cm -2 .…”

Straightforward Synthesis of Well-Defined Poly(vinylidene fluoride) and Its Block Copolymers by Cobalt-Mediated Radical Polymerization

“…8 As several other fluoropolymers, PVDF can only be synthesized by radical polymerization but leads to some defects of VDF-VDF chaining. 9,10 The VDF monomer is not explosive and much less toxic than TFE, chlorotrifluoroethylene (CTFE) 11 or other fluoromonomers. 3 Though several techniques of reversible deactivation radical polymerization of VDF have been reported, [12][13][14][15][16][17][18][19] the importance of PVDF has stimulated the search for nonradical methods for VDF polymerization.…”