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Investigation Of Condensation Type Elastomers

Report Number: WADC TR 55-221 Part 4
Author: Schweiker, George C.
Author: Verbanic, Carl J.
Author: Lucas, Blaine L.
Author: Gouinlock, Edward V.
Author: Marks, Burton S.
Corporate Author: Hooker Electrochemical Company
Laboratory: Materials Laboratory
Date of Publication: 1958-02
Pages: 78
Contract: AF 33(616)-2421
Project: 7340
Task: 73404
PB Number: PB131800
AD Number: AD0151009

The ultimate goal of the exploratory investigations described is the development of a rubber for special Air Force applications. Major requirements for such a material include good mechanical properties, high thermal stability (originally 300 F or higher), satisfactory performance at -65 F or lower, and resistance to aromatic fuels, synthetic ester-base oils, and hydraulic fluids. To this end, fluorine-containing condensation polymers are being investigated in an effort to discover and develop suitable new elastomers. This report describes the preparation, compounding, crosslinking, and properties of certain fluorine-containing polyester elastomers which appear to meet the goals outlined above. The report also describes the research performed on the synthesis of fluorine containing difunctional starting materials, polyesters and nitrogen-substituted polyamides therefrom, and their characterization.

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