Accession Number : AD0608331
Title : THE VISCOELASTIC RELAXATION MECHANISMS OF INORGANIC POLYMERS: THE POLYPHOSPHORYLDIMETHYLAMIDES.
Descriptive Note : Technical rept. no. 5,
Corporate Author : CALIFORNIA UNIV LOS ANGELES
Personal Author(s) : Eisenberg,A. ; Teter,L.
Report Date : SEP 1964
Pagination or Media Count : 22
Abstract : The viscoelastic properties of the polyphosphoryldimethy lamides were investigated by the technique of stress relaxation as a function of the P to N ratio, and therewith of the chain length. From the great similarity of the shape of the curves to those of 'normal' organic polymers, i.e. poly(methyl methacrylate) or polystyrene as a function of the molecular weight, as well as from the difficulty of preparing samples below the gelpoint, it is concluded that the relaxation mechanism in the flow region is molecular flow, with bond interchange along the backbone either completely absent or present to only a minor extent. (Author)
Descriptors : (*INORGANIC POLYMERS, VISCOELASTICITY), (*PHOSPHORUS COMPOUNDS, INORGANIC POLYMERS), ORGANIC PHOSPHORUS COMPOUNDS, AMIDES, MECHANICAL PROPERTIES, STRESSES, RELAXATION TIME, MOLECULAR STRUCTURE, CHEMICAL BONDS, TRANSITION TEMPERATURE, MOLECULAR WEIGHT
Distribution Statement : APPROVED FOR PUBLIC RELEASE