- Polyfluoroalkyl chlorosulfites as new polyfluorinating agents
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The interaction of polyfluorinated alcohols with triethylamine and the kinetics of the reaction of the resulting triethylamine complexes with thionyl chloride were studied, the mechanism of formation of polyfluoroalkyl chlorosulfites was considered, and the optimal reaction conditions were found. The alkylating power of polyfluoroalkyl chlorosulfites was studied in reactions with alkali metal halides (to obtain polyfluorohaloalkanes), in synthesis of acrylic and methacrylic acid esters, and in synthesis of polyfluoroalkyl ethers (with polyfluoroalkyl 1-adamantyl ethers as example).
- Rakhimov,Vostrikova
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p. 1162 - 1165
(2007/10/03)
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Several fluorinated and chlorofluorinated acrylates and methacrylates were synthesized from the alcohols RFCH2OH with RF=CCl3, CHClCH2CCl3, (CF2CFCl)nCl, (C2F4)nH, CF3, C7F15 and C6F13CH2. The corresponding polymers were also studied for their application as transparent polymeric materials. For this purpose the refractive indices n20D of the monomers and the polymers were measured as were the Tg values of the polymers. A study of their infrared spectra shows to what extent these products could be utilized taking into consideration their absorption in the long wavelength range between 0.85 and 1.50 m. The refractive indices of these polymers, which are reduced when increasing the number of fluorine atoms in the molecule, and that of the Tg measured between 50 and 70° C for the fluorinated methacrylates, indicate a potential use of these polymers as sheathing materials for optical fibres.
- Boutevin,Rigal,Rousseau,Bosc
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- SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF ORGANOFLUORINE ESTERS OF ACRYLIC, METHACRYLIC, AND MALEIC ACIDS.
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The purpose of this work is to synthesize, and to study the physicochemical properties of organofluorine acrylates, methacrylates, and maleates.
- Gol'din,Averbakh,Nekrasova,Lavygin,Leitan,Chalbysheva
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p. 1244 - 1247
(2007/10/02)
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