N n dimethylformamide d7

Vinylidene fluoride (VDF, Dyneon GmbH, Burgkirchen a.d.Alz, Germany, 99.5%), styrene (S, Sigma-Aldrich, Taufkirchen, Germany, 99.5%), methyl methacrylate (MMA, Sigma-Aldrich, Taufkirchen, Germany, 99%), di-tert-butylperoxide (DTBP, Merck, Darmstadt, Germany, 98%), 1-iodoperfluorohexane (ABCR, Karlsruhe, Germany, 99%), 1,4-diiodooctafluorobutane (Dyneon GmbH, Burgkirchen a.d.Alz, Germany), dimanganese decacarbonyl (Sigma-Aldrich, Taufkirchen, Germany, 98%), methanol (95%), hydrochloric acid (37%), N,N-dimethyl acetamide (DMAc, Acros, Geel, Belgium, 99%), ammonium 4,8-dioxa-3H-perfluorononanoate (Dyneon, GmbH, Burgkirchen a.d.Alz, Germany), ammonium peroxydisulfate (Fluka, Honeywell, Hannover, Germany, ≥98.0%), carbon dioxide (Air Liquide, Paris, France, 99.8%), N,N-dimethylformamide-d₇ (Deutero GmbH, Kastellaun, Germany, 99.5%), and acetone-d₆ (Deutero GmbH, Kastellaun, Germany, 99.8%) were used as received.

Vinylidene fluoride (Dyneon, 99.5%), the chain transfer agent 1,4−diiodooctafluorobutane, the emulsifier ammonium 4,8-dioxa-3H-perfluorononanoate (ADONA, Dyneon, Gendorf, Germany), and the initiator ammonium peroxydisulfate (APS) (≥98.0%, Fluka) were used as received. Ultrapure and deionized water (electric conductivity: 0.055 µS∙cm⁻¹) served as continuous phase for the emulsion polymerization. N,N−dimethyl acetamide (DMAc) (99%, Acros, Nidderau, Germany) containing 0.1% of LiBr (≥99%, Riedel-de-Häen) is used as eluent for size-exclusion chromatography. N,N−dimethylformamide−d₇ (99.5%, Deutero GmbH, Kastellaun, Germany) and acetone−d₆ (99.8%, Deutero GmbH, Kastellaun, Germany) were used as received.