Method of making and polymerizing perfluoroalkylene acetylene co

Details Method of making and polymerizing perfluoroalkylene acetylene co Method of making and polymerizing perfluoroalkylene acetylene co

1983-08-12

1986-10-21

Trousof, Natalie

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

Organic compounds

Halogen containing

570140, 570155, 570175, 570126, C07C 2122

Patent

active

046187340

ABSTRACT:
A perfluoroalkylene .alpha.,.omega.-diacetylene compound having a fluorocarbon chain of from 5 to about 20 carbon atoms between two acetylene end groups, and a method of forming same by first reacting perfluoroalkylene diiodide having the formula I(CF.sub.2).sub.n I, wherein n is a whole number from 5 to about 20, inclusive with bis(trimethylsilyl)acetylene, and converting the reaction product to the diacetylene with KF. The diacetylene has the general formula HC.tbd.C(CF.sub.2).sub.n C.tbd.CH, wherein n is as set forth above, and it can be polymerized to produce a clear, hard, cross-linked resin suitable for use as a coating on bearings and in the manufacture of aircraft windshields. Monofunctional counterparts of the HC.tbd.C(CF.sub.2).sub.n C.tbd.CH compounds can be formed by substituting perfluoroalkyl primary iodides for the diiodides in the above-described reaction. The resulting compounds (fluorinated monofunctional acetylenes) can be trimerized to yield liquids suitable as lubricating oils, hydraulic fluids, etc.

REFERENCES:
patent: 4347376 (1982-08-01), Baum et al.

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