Elastomeric Dithiopolyesters

Item

Title
Elastomeric Dithiopolyesters
Date
1955
Index Abstract
Online
Photo Quality
Not Needed
Report Number
WADC TR 55-117
Corporate Author
Materials Laboratory
Laboratory
Materials Laboratory
Extent
25
PB Number
PB111949
NTRL Accession Number
AD080283
Identifier
AD0080283
Access Rights
OTS
Distribution Classification
1
Contract
Laboratory Research - No Contract
DoD Project
7340
DoD Task
73404
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
AFWAL ltr
Distribution Change Action Date
4/19/2004
Distribution Conflict
Fix
Index Price
$0.75
Index In
U.S. Government Research Reports, vol. 25, no. 4, p.173, 4/13/1956
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.
Report Availability
Full text available
Date Issued
1955-06
Provenance
IIT
Type
report
Format
1 online resource
Creator
Knobloch, F. W.
Media
WADCTR55-117.pdf