Fluorinated vinyl ethers, copolymers thereof, and precursors thereof.

摘要

@ Vinyl ethers and acyl fluorides of the formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="10" wi="34" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein Y is CF<Sub>2</Sub>=CF-or
<Chemistry id="chema02" num="0002"><Image id="ia02" he="10" wi="16" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>n is 0 or 1 and R is CH<Sub>3</Sub> or C<Sub>2</Sub>H<Sub>5</Sub>. The vinyl ethers can be copolymerized with, e.g., tetrafluoroethylene, to provide copolymers which are useful as electrical insulation and as the sheath portion of optical fibers, and can be converted to known ion exchange polymers having carboxylic groups which are useful, e.g. in the form of permionic membrane, for separating the compartments of a chloralkali cell.