Results 151 to 160 of about 4,210,866 (206)
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Low-surface-energy polystyrene
Macromolecules, 1992Styrene monomers carrying C 4 F 9 and C 8 F 17 substituents were prepared and homo- and copolymerized with styrene by radical initiation. A decrease in the T g with increasing the fraction of fluorocarbon substituents was observed. Side-chain crystallization was observed for the homopolymer containing C 8 F 17 segments.
Höpken, J., Moller, M.
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The equivalency of surface tension, surface energy and surface free energy
Journal of Materials Science, 1994In much of the available literature, there is confusion regarding the correct use of the terms surface tension, surface energy and surface free energy. As a result, these three terms have been used interchangeably to describe the same quantity. This problem is particularly serious in the area of solid surface science. Linford has examined and discussed
S. W. Ip, J. M. Toguri
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Proceedings of the Physical Society. Section A, 1951
The kinetic and potential parts of the nuclear surface energy are calculated on the basis of the statistical model of the nucleus taken to first order and using a gaussian interaction between particles. The resulting surface energy is found to be of the right order of magnitude, the calculated figure being in fact 55% of the empirical value.
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The kinetic and potential parts of the nuclear surface energy are calculated on the basis of the statistical model of the nucleus taken to first order and using a gaussian interaction between particles. The resulting surface energy is found to be of the right order of magnitude, the calculated figure being in fact 55% of the empirical value.
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Surface energy and surface tension
Canadian Journal of Chemistry, 1968Some thermodynamic properties of surface regions are defined. The interdependence of these properties, the effects of particle size, etc. are examined.Results of computer summations of Lennard–Jones (6–12) interaction energies of atoms at lattice sites of face-centered cubic arrays are presented.
E. A. Flood, G. C. Benson
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Surface Energies in Superconductors
Physical Review, 1956A variational method is applied to calculate the surface energy at the normal-superconducting interface in a superconductor. Both the Casimir-Gorter theory, as formulated by Bardeen, and the phenomenological energy-gap model are used. A comparison is made with the available experimental data.
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Surface energy and surface processes in solids
Uspekhi Fizicheskih Nauk, 1962I. Introduction 129 II. Methods for Determining the Surface Energies of Solids 130 III. The Natural Roughness of the Surfaces of Crystals 136 IV. Change of Surface Profile in Single Crystals and Polycrystalline Materials 139 V. The Development of Intergrain Thermal-etching Grooves 147 VI.
Ya E Geguzin, N N Ovcharenko
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physica status solidi (b), 1965
At least five conclusions may be formulated after perusing this review. 1. No method so far suggested for measuring the surface energy or surface tension of solids is satisfactory. 2. This failure may be caused, above all, by the fact that solids, contrary to liquids, cannot alter their shape without changing the strain energy in ...
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At least five conclusions may be formulated after perusing this review. 1. No method so far suggested for measuring the surface energy or surface tension of solids is satisfactory. 2. This failure may be caused, above all, by the fact that solids, contrary to liquids, cannot alter their shape without changing the strain energy in ...
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Surface Free Energy. Surface Tension
1993The surface tension γ and the (specific) surface free energy σ of a crystal face with area A are related by γ = σ+ A•(dσ/dA) [1]. There is some confusion in the literature in properly using γ and σ; for a more recent discussion of the difference between σ and γ, see [2 to 4].
Gerhard Czack +3 more
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Surface energy of fluorinated surfaces
Journal of Fluorine Chemistry, 1976Abstract By fluorinating the surface of a polymer, the hydrogen bonding energy of a polar surface has been defined. The contact angles for three solvent classes; nonpolar, polar and hydrogen bonding, on a polar surface results in the separation of dispersion, polar, and hydrogen bonding energies.
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Journal of Chemical Education, 1988
Three exam questions, graded in difficulty, that explore the topic of potential energy surfaces to a greater depth than usual.
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Three exam questions, graded in difficulty, that explore the topic of potential energy surfaces to a greater depth than usual.
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