Diffusion in polymer solutions.
Diffusion coefficient of ordinary low molecular weight solutes in polymer solutions, noting variation of diffusivity from value in pure solvent
Gainer, J. L.↗
SEARCH · Engineering Papers
Results for “molecular weight”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Spinach ferredoxin. I.
Spinach ferredoxin molecular weight, amino acid composition and amino and carboxyl terminal sequences
Chain, R. K.↗
An experiment to determine the structure of a planetary atmosphere.
Planetary atmosphere structure and mean molecular weight determination from onboard measurements tested at high altitude in earth atmosphere, based on NASA Program
Sommer, S. C.↗
New rapid-curing, stable polyimide polymers with high-temperature strength and thermal stability
Additive-type polymerization reaction forms thermally stable polyimide polymers, thereby eliminating the volatile matter attendant with the condensation reaction. It is based on the utilization of reactive alicyclic rings positioned on the ends of polyimide prepolymers having relatively low molecular weights.
Burns, E. A.↗
Thermophysical properties of sodium
Assessment is given of physical and thermodynamic properties of sodium. FORTRAN subroutine computes enthalphy and entropy of sodium in given state, and composition, molecular weight, volume, and compressibility factor of corresponding vapor. Tabular results for saturated liquid and vapor are presented for a 500-2500 degree F range.
Golden, G. H.↗
Properties of air and combustion products of fuels with air
Thermodynamic and transport properties include ratio of specific heats, molecular weight, viscosity, heat capacity, thermal conductivity, and Prandtl number. Properties are calculated from 300 to 2500 degrees K and for pressures of three and ten atmospheres.
Lewandowski, K.↗
Rapid osmometry with diffusible polymers.
High speed automatic osmometer applied to measurements of diffusible branched polyethylene samples, discussing apparent molecular weight observations
Billmeyer, F. W., Jr.↗
An experiment to determine the structure of a planetary atmosphere.
Structure and mean molecular weight measurement of unknown atmosphere assessed from high altitude tests in earth atmosphere
Sommer, S. C.↗
Gas analysis with pulsed vacuum networks.
Molecular flow network theory extended to pulsed operation with gases mixtures having various molecular weights
Kendall, B. R. F.↗
Heat conduction in linear amorphous high polymers - Orientation anisotropy.
Heat conduction orientation anisotropy in linear amorphous high polymers due to uniaxial stretching, noting molecular weight distribution and temperature effects
Hansen, D.↗
An experiment to determine the structure of a planetary atmosphere.
Planetary atmosphere structure and mean molecular weight determination from onboard measurements tested at high altitude in earth atmosphere, based on NASA Program
Sommer, S. C.↗
Improved process for synthesizing anilinosilane compounds
New process gives good yields of anilinosilane compounds that can be readily isolated in a high state of purity. S-collidine is used as an HCl acceptor. Silane compounds can be melt-condensed with aromatic diols to provide high molecular weight polyaryloxysilane materials that are of importance in polymer technology.
Dunnavant, W. R.↗
Difunctional polyisobutylene prepared by polymerization of monomer on molecular sieve
Process yields difunctional isobutylene polymers ranging in molecular weight from 1150 to 3600. These polymers have the potential for copolymerization and cross-linking with other monomers to form elastomeric materials.
Midler, J. A., Jr.↗
Simple method for predicting viscosity of gas mixtures
Method is derived from the Chapman-enskog theory which describes viscosities at low-to-moderate pressures. Mixtures of nonpolar gases require the viscosities and molecular weights of the constituents in addition to the mixture composition. Dipole moments, boiling points and liquid boiling point densities are also needed with polar gases.
Brokaw, R. S.↗
Theoretical and experimental study of supersonic mixing of turbulent dissimilar streams
Molecular weight effects on rate of turbulent mixing of dissimilar supersonic gas streams
Woolley, J. P.↗
Polymer research
Aging, viscoelastic, and electrical conductivity of elastomers, molecular weight determination, and battery separators
Source record↗
Morphology of polysiloxanes crystallized from the melt
Polysiloxanes morphology crystallized isothermally from melt using electron microscopy, noting fracture ease increment with molecular weight decrease
Haller, M. N.↗
Analysis of T4 phage proteins. I
T4 phage proteins radioisotopical examination, determining quantitative analysis and molecular weight by autoradiography
Cone, R.↗