Now showing items 1-10 of 12
Stress - strain isotherms and thermoelastic properties of crosslinked amorphous polyoxyethylene in compression
(Elsevier, 1975-05)
Stress-strain isotherms at a number of temperatures in the range 45-85[deg]C have been determined for a compressed, amorphous polyoxyethylene network swollen with a constant amount of non-volatile diluent. The observed ...
Volatile combustion products of polycarbonate and polysulfone
(Wiley Subscription Services, Inc., A Wiley Company, 1972-04)
Thermal analysis of polycarbonate and polysulfone has shown each plastic to undergo a two-step decomposition, the first step involving production of high-boiling chain scission and volatile products, the second resulting, ...
An investigation of the maximum experimental safe gap anomaly
(Elsevier, 1979)
The "safe gap" is defined as the maximum gap between two close-fitting, flat, machined metal surfaces that will just prevent an explosion within a vessel from producing a propagating combustion wave in the gases that ...
Annealing effects of polymers and their underlying molecular mechanisms
(Elsevier, 1976-04)
This paper indicates that changes in chain mobility, heat capacity, WAXS crystallinity, SAXS long period, SAXS peak intensity, specific volume and morphology as a function of increasing temperature, occur in three fairly ...
Time–temperature superposition of large-strain shear properties of the ethylene–propylene copolymer system
(Wiley Subscription Services, Inc., A Wiley Company, 1972-02)
The principle of time temperature superposition for some mechanical properties of polymers is well known, particularly where strains are on the order of 1% or less. For large strains the simple data transformation techniques ...
Configurational characteristics of ethylene-vinyl chloride copolymers
(Elsevier, 1973-11)
Rotational isomeric state theory has been used to calculate mean-square unperturbed dimensions r2> and dipole moments 2> of ethylene-vinyl chloride copolymers as a function of chemical composition, chemical sequence ...
Dimensions of poly(trimethylene oxide) chains in a theta-solvent
(Elsevier, 1976-08)
Fractions of poly(trimethylene oxide) ---CH2)3---]x of relatively high degree of polymerization x were studied in liquid-liquid phase equilibria in the poor solvent cyclohexane. The results thus obtained indicate that the ...
Characterization of the compaction and sintering of hydroxyapatite powders by mercury porosimetry
(Elsevier, 1974-04)
Mercury porosimetry was used to measure the bulk and real densities, pore volumes and pore size distributions of compacts of hydroxyapatite before and after sintering. The hydroxyapatites were prepared by two different ...
A computer program for pore volume and pore area distribution calculations from mercury porosimeter data on particulate or porous materials
(Elsevier, 1972-07)
A computer program in Fortran IV is described for rapidly determining pore size and pore area distribution calculations from the high pressure mercury porosimeter data. The listing of the program is reproduced as well as ...