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Thermal mobility

The particles in a disperse system with a liquid or gas being the dispersion medium are thermally mobile and occasionally collide as a result of the Brownian motion. As the particles approach one another, both attractive and repulsive forces are operative. If the attractive forces prevail, agglomerates result indicating an instability of the system. If repulsive forces dominate, a homogeneously dispersed or stable dispersion remains. [Pg.247]

Gibbs ensemble. Good for obtaining a few points for subcritical phase coexistence between phases of moderate densities does not provide free energies directly. Primarily used to study fluid (disordered) phases. Is a standalone approach, and requires modest programming and computational effort to set up and equilibrate the multiple simulation boxes. Provides accurate coexistence points at intermediate temperatures below the critical point but with sufficient thermal mobility to equilibrate. [Pg.381]

Thiazetes are formed on the thermolysis of 4-aryl-2,2,6,6-tetra(triflu-oromethyl)-6//-l,3,5-oxathiazine. These thiazines are in thermally mobile equilibrium with (perfluoroisopropylidene)thiocarboxamide 224. The latter... [Pg.383]

Here Tio denotes the critical electric field strength expressed in units of V/m, at which the electron mobility deviates 10% from the thermal mobility, and is used as a measure of the rate of the electron energy dissipation in a particular system. Despite its simplicity, Eq. (40) is shown to give reasonable estimates of the electron-ion recombination rate constant for some of the experimentally studied high-mobility systems. [Pg.275]

Initially, gels were prepared within the capillary by copolymerization of acrylamide with bisacrylamide [9] as in slab gel electrophoresis. The capillary wall was coated with an acrylate as described above to remove the EOE Thus the gel could also be chemically fixed on the wall. Agarose which can be thermally mobilized has also been used [10]. With these gels the problem discussed above arose. Therefore liquid gels were introduced [11] after they had already been proposed for classical electrophoresis [12]. Some remarks on the properties of the sieving media will be given as the information found in the literature can be very confusing. [Pg.199]

These are dark blue species obtained by reduction of both isopoly- and heteropoly molybdates and tungstates, and thus the class is broader than the name implies. It appears that in general, these reductions are reversible and major structural features are retained. In the case of the [M6Oi9]2 ions, reduction by one electron gives a 3-ion in which the added electron is weakly trapped at one metal atom but is thermally mobile. [Pg.932]

The conductive properties of alkylated thiophenes are known to be unstable, particularly at elevated temperatures. The mechanism of thermal undoping has been associated with thermal mobility. Consequently, various workers126 have considered synthesis of random copolymers (e.g., thiophene and 3-octylthiophene), with well-distributed octyl side groups leaving space around the main chains to accommodate dopants. [Pg.217]

In both nylon 66, studied by Starkweather [25], and high-performance epoxy resin, described by Moy and Karasz [30], the water is believed to hydrogen bond between polar sites in the polymers, acting as crosslinks at low temperatures but plasticizing at elevated temperatures because of the greater thermal mobility of water compared to segments of the polymer chain. [Pg.9]


See other pages where Thermal mobility is mentioned: [Pg.805]    [Pg.40]    [Pg.256]    [Pg.260]    [Pg.303]    [Pg.321]    [Pg.443]    [Pg.450]    [Pg.424]    [Pg.610]    [Pg.105]    [Pg.369]    [Pg.145]    [Pg.27]    [Pg.146]    [Pg.149]    [Pg.272]    [Pg.214]    [Pg.21]    [Pg.2219]    [Pg.123]    [Pg.137]    [Pg.627]    [Pg.289]    [Pg.509]    [Pg.512]    [Pg.423]    [Pg.219]    [Pg.453]    [Pg.379]    [Pg.697]    [Pg.73]    [Pg.73]    [Pg.468]    [Pg.162]    [Pg.140]    [Pg.95]    [Pg.74]    [Pg.107]    [Pg.352]    [Pg.54]    [Pg.78]   
See also in sourсe #XX -- [ Pg.509 ]




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