Synthesis of perfluoropoly(ethylene glycol) ethers: CF<sub>3</sub>–[O–CF<sub>2</sub>–CF<sub>2</sub>]<sub>n</sub>–O–R<sub>f</sub>(R<sub>f</sub>= CF<sub>3</sub>or C<sub>2</sub>F<sub>5</sub>; n= 1–5)
作者:Glenn E. Gerhardt、Richard J. Lagow
DOI:10.1039/c39770000259
日期:——
A new synthetic method for the preparation of high molecular weight fluorocarbon ethers has been developed; polyethylene oxide was caused to react with elemental fluorine under conditions carefully regulated to fragment and perfluorinate the polyether system and yield a number of new fluorocarbon ethers.
the existence of two different free radical reaction mechanisms is demonstrated by the presence of characteristic byproducts. These kinetic schemes can be experimentally controlled by tuning the hypofluorite concentration in the reaction media.