Dopants for a perfluorinated graded index polymer optical fiber
A perftuorinated graded index polymer optical fiber (PFGI-POF) has been developed and manufactured for data communication to provide a high bandwidth with easy termination and cabling. In the PFGI-POF technology, the graded refractive index profile using
AROMATIC FLUORINE DERIVATIVES. XCIX. REACTION OF OCTEFLUORONAPTHALENE WITH PENTAFLUOROBENZENESULFONYL HALIDES AND DI-tert-BUTYL PEROXIDE
In the reaction of octafluoronapthalene with oxygen-containing radicals (pentaflurophenylsulfonyl and tert-butoxyl) the stabilization of the radical ? complexes is realized by the formation of the heptafluoronapthoxyl radical, the subsequent transformations of which lead to polyfluorinated derivatives of oxodihydronapthalenes.The products from homolytic substitution and the products from dimerization of the respective radical ? complexes are formed in the reaction of octafluoronapthalene with methyl and pentafluorophenyl radicals.Analysis of the 19F NMR spectra of the obtained dimeric product makes it possible to suppose that a rearrangement with 1,2-migration of a fluorine atom occurs in the ? complexes from the addition of the methyl and pentafluorophenyl radicals to octafluoronapthalene.
Bogachev, A. A.,Kobrina, L. S.,Yakobson, G. G.
p. 967 - 975
(2007/10/02)
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