Accession Number : AD0708862
Title : A LOW-TEMPERATURE DIFFERENTIAL THERMAL ANALYSIS OF HYDROXY-TERMINATED AND CARBOXY-TERMINATED POLYBUTADIENE.
Descriptive Note : Special rept.,
Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Personal Author(s) : Tice,A. ; Bartizek,B. ; Anderson,D. M.
Report Date : JUN 1970
Pagination or Media Count : 14
Abstract : A low-temperature differential thermal analysis of hydroxy- and carboxy-terminated polybutadiene was performed with varying amounts of n-butylferrocene. No distinct phase changes were observed to indicate that the sample components became separated during cooling. However, the slow transformation into the glassy state was observed, yielded glass transition temperatures of -80 to -95C. This is far below the low temperature specification for these propellants. This analysis yielded no evidence of a physical or chemical transition that might cause a low-temperature firing failure in the finished propellants. (Author)
Descriptors : (*SOLID ROCKET PROPELLANTS, DIFFERENTIAL THERMAL ANALYSIS), (*POLYMERS, *DIFFERENTIAL THERMAL ANALYSIS), BUTADIENES, FERROCENES, TRANSITION TEMPERATURE
Subject Categories : Physical Chemistry
Solid Rocket Propellants
Distribution Statement : APPROVED FOR PUBLIC RELEASE