| 摘要 |
An alkyl perfluoroketoester of the formula
<CHEM>
may be used in the preparation of acyl fluorides of the formula
<CHEM>
vinyl ethers of the formula
<CHEM>
divinyl ethers of the formula
<CHEM>
and allyl ethers of the formula
<CHEM>
[In these formulae n is 0 to 6, p is 0 to 7, X is CO2M, CO2R, CO2H, CONH2, COF, COCl or CN, M is alkali metal, ammonium or quaternary ammonium and R is C1-8 alkyl.] Film-forming copolymers, useful as molding resins, can be derived from the vinyl ethers and a fluorinated vinyl monomer, for example, tetrafluoroethylene.
<??>Ion-exchange copolymers of the vinyl ethers and allyl ethers are useful as the membrane in a chloroalkali electrolysis cell. |
