Oligomers of perfluoro(2,2-dimethyl-1,3-dioxole) and their fluor

Details Oligomers of perfluoro(2,2-dimethyl-1,3-dioxole) and their fluor Oligomers of perfluoro(2,2-dimethyl-1,3-dioxole) and their fluor

1984-09-14

1985-12-24

Love, Ethel G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528402, C07D31700

Patent

active

045607788

ABSTRACT:
Perfluoro(2,2-dimethyl-1,3-dioxole) forms oligomers on standing in the presence of an ether. The preferred ethers are aliphatic and cycloaliphatic, especially tetrahydrofuran. Free radical generators, especially peroxydicarbonates, may be added to the reaction medium. The oligomers have a degree of polymerization of about 2-8. They are useful as lubricants, hydraulic fluids, heat transfer agents, and plasticizers, and as intermediates to oligomeric acid fluorides and acids, which acids are useful surfactants.

REFERENCES:
patent: 3316216 (1967-04-01), Fawcett et al.
patent: 3865845 (1975-02-01), Resnick
patent: 3978030 (1976-08-01), Resnick
patent: 4399264 (1983-08-01), Squire
patent: 4431786 (1984-02-01), Squire
patent: 4485250 (1984-11-01), Squire

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