Process for preparing ester fluorinated ion exchange polymer pre

Details Process for preparing ester fluorinated ion exchange polymer pre Process for preparing ester fluorinated ion exchange polymer pre

1983-12-27

1984-10-02

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

526245, 526247, 525353, C08K 330, C08F21418

Patent

active

044748990

ABSTRACT:
Vinyl ether monomers of the formula ##STR1## wherein n is 0 or 1 and R is CH.sub.3 or C.sub.2 H.sub.5, precursors thereto, and copolymers with, e.g., tetrafluoroethylene, are provided. The copolymers 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. The vinyl ether monomers can also be converted to vinyl ether monomers which contain carboxylate functional groups, which in turn can be copolymerized to useful copolymers.

REFERENCES:
patent: 3544537 (1970-12-01), Grace
patent: 4065366 (1977-12-01), Oda et al.
patent: 4329434 (1982-05-01), Kimoto et al.
Young and Tarrant, "The Preparation of Some Derivatives of Chlorofluoroacetic Acid", J. Amer. Chem. Soc., 71, 2432-2433 (1949).

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