Contrails
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.

Elastomeric Dithiopolyesters

Report Number: WADC TR 55-117
Author: Knobloch, F. W.
Corporate Author: Materials Laboratory
Laboratory: Materials Laboratory
Date of Publication: 1955-06
Pages: 25
Contract: Laboratory Research - No Contract
Project: 7340
Task: 73404
PB Number: PB111949
AD Number: AD0080283

Abstract:
Elastomers have been prepared from an experimental liquid polymer formulation derived from a condensation product of mercaptoacetic acid and triethylene glycol. Two general types of these elastomers are discussed; one was obtained by reaction of the liquid polymer with organic and inorganic peroxides, the other by reaction of terminal mercapto groups with unsaturated aldehydes. Selected specimens of each type of elastomer were successfully compounded and vulcanized using conventional rubber processing equipment. The behaviour of these vulcanizates in fuels and synthetic ester base oils has been studied along with the effects of aging at elevated temperatures. The vulcanized dithiopolyesters showed excellent resistance to the swelling action of 70/30 iso-octane/toluene fuel mixtures. Ester base oils of the MIL-78O8A type were found to cause shrinkage. Elevated temperatures (350 F) consistently brought about rapid deteri oration of both vulcanized and raw polymer stocks.


Provenance:
IIT
Download this report

(PDF, 0.86 MB, 25 pages)

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
The NTIS Order Number for this report is: AD080283
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
A PB Number, PB111949 , exists for this report, indicating public availability of the report at time of publication

An index contemporary to the publication of this report suggests its public availability
This report has been indexed in U.S. Government Research Reports, vol. 25, no. 4, p.173, 4/13/1956
You may view this report's index entry
The inside cover of this report indicates that it was released for public sale