Accession Number : AD0460483


Title :   THE COMPRESSIBILITY OF CROSSLINKED POLYMERS.


Descriptive Note : Technical rept.,


Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD


Personal Author(s) : Warfield, Robert W.


Report Date : 18 FEB 1965


Pagination or Media Count : 19


Abstract : Bulk compressibilities of a series of crosslinked polymers have been measured at pressures up to 10,000 atmospheres and over the temperature range of 25 to 250 C. These polymers exhibited non-linear compressibility characteristics reaching a maximum compressibility of about 15% at 10,000 atmospheres and decreasing with increasing pressure. By conducting the measurements at slow speeds, data were obtained which could be expressed as glass-rubber phase diagrams. The nature of the observed compressibilities is discussed and the variation of the glass transition with pressure is analyzed on the basis of Ehrenfest thermodynamics. (Author)


Descriptors :   , (*EPOXY RESINS, COMPRESSIVE PROPERTIES), (*SILICONE PLASTICS, COMPRESSIVE PROPERTIES), (*POLYESTER PLASTICS, COMPRESSIVE PROPERTIES), HIGH PRESSURE, COPOLYMERIZATION, PHASE STUDIES, TRANSITION TEMPERATURE, STYRENE PLASTICS, ACRYLIC RESINS, THERMODYNAMICS, TEMPERATURE.


Distribution Statement : APPROVED FOR PUBLIC RELEASE