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The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Investigation Of Condensation Type Elastomers

Report Number: WADC TR 55-221 Part 2
Author: Schweiker, George C.
Author: Deleo, Ruolph N.
Author: White, Russell R.
Corporate Author: Hooker Electrochemical Company
Laboratory: Materials Laboratory
Date of Publication: 1956-05
Pages: 71
Contract: AF 33(616)-2421
Project: 7340
Task: 73404
AD Number: AD0101728

Abstract:
The ultimate goal of the exploratory investigations described is the development of a rubber for special Air Force applications. High thermal stability (350 F or higher); resistance to aromatic fuels, synthetic ester base oils and hydraulic fluids; resistance to ozone and to weathering oxidation effects; resistance to acids, bases, and salts; resistance to abrasion; and satisfactory performance at -65 F or lower are major requirements for such an elastomer. To this end, a number of linear polyesters have been prepared from fluorine containing diols and various dicarboxylic acid chlorides, and their properties determined. Hexafluoropentylene adipate (made from adipyl chloride and 2,2,3,3,4,4-hexafluoropentanediol) is a rubber-like gum when of sufficiently high molecular weight, and this polyester has been crosslinked to evaluate the properties of the elastomer in the light of Air Force requirements.


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