Radical Copolymerization of α‐Trifluoromethylacrylic Acid with Vinylidene Fluoride and Vinylidene Fluoride/Hexafluoropropene
作者： Renaud Souzy , Bruno Ameduri , Bernard Boutevin
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摘要: The radical copolymerization of α-trifluoromethylacrylic acid (TFMAA) with vinylidene fluoride (VDF), initiated by tert-butyl 2,2-dimethyl peroxypropanoate (or peroxypivalate) is presented. kinetics were investigated from a series eight reactions for which the initial [VDF] 0 /[TFMAA] molar ratios ranged between 15.0/85.0 and 89.4/10.6. compositions copolymers, i.e. VDF TFMAA monomeric units, determined mainly 19 F 1 H NMR spectroscopy. According to Tidwell Mortimer method, reactivity ratios, r i , assessed be: =0.33±0.09 = at 55°C, leading copolymers alternating structure. Then, terpolymerization hexafluoropropene (HFP), 2,5-bis (tert-butylperoxy)-2,5-dimethylhexane described thermal properties materials produced are discussed.
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