Results 251 to 260 of about 137,034 (308)

Kinetic Inhibitor of Hydrate Crystallization

Journal of the American Chemical Society, 2004
We present the results of a combined theoretical/experimental study into a new class of kinetic inhibitor of gas hydrate formation. The inhibitors are based on quaternary ammonium zwitterions, and were identified from a computational screen. Molecular dynamics simulations were used to characterize the effect of the inhibitor on the interface between a ...
Mark T, Storr, Paul C, Taylor, Jean-Pierre, Monfort, P Mark, Rodger   +3 more
openaire   +2 more sources

Crystallization kinetics of water on graphite

Physical Chemistry Chemical Physics, 2018
The nucleation and growth of water crystallites on a graphite substrate are discussed in terms of the initial film thickness, deposition temperature, and effects of adspecies.
Ryutaro Souda, Takashi Aizawa
openaire   +2 more sources

Kinetics of Nonisothermal Polymer Crystallization

The Journal of Physical Chemistry B, 2005
We adopt a cluster size distribution model to investigate the kinetics of nonisothermal polymer crystallization. The time dependencies of polymer concentration, number and size of crystals, and crystallinity (in Avrami plots) are presented for different cooling rates.
Yang, Jiao, McCoy, Benjamin J, Madras, Giridhar   +2 more
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Kinetics of spherulitic crystallization

Polymer Engineering & Science, 1965
AbstractPolymer crystallization is discussed with attention given to primary nucleation, spherulite growth, and bulk crystallization. Primary nucleation is the area of least knowledge, and the authors discuss the kinetics of nuclei appearance and recent observations concerning the effects of foreign materials and surfaces.
Eric Baer, J. R. Collier, D. R. Carter
openaire   +1 more source

Kinetic Theory of Crystallization

physica status solidi (a), 1982
A phenomenological approach is proposed to describe the variation with time of temperature and the amount of substance crystallized from the melt due to nucleation and nuclei growth. It is shown that depending on the heat withdrawal rate the set of relations for these values describes the main forms of transition from the liquid to the solid state ...
S. S. Vilkovskii, V. P. Naberezhnykh
openaire   +2 more sources

Crystallization kinetics of homopolymers: overall crystallization: a review

Biophysical Chemistry, 2004
This paper is a brief review of the overall crystallization kinetics of synthetic homopolymers. The basic experimental results are presented and compared with theory that is currently available. It is found, surprisingly, that the more sophisticated theories do no better in explaining experimental results than does the free-growth approximation.
openaire   +2 more sources

Crystallization kinetics of pentaerythritol

Journal of Crystal Growth, 1996
A framework is proposed for the modelling of the crystallization kinetics of pentaerythritol in a suspension crystallizer. The main kinetic processes that are considered are those of crystal growth, attrition and secondary nucleation.
R.Ó Meadhra, H.J.M. Kramer, G.M. van Rosmalen   +2 more
openaire   +1 more source

The kinetics of crystallization of hopeite

Journal of Crystal Growth, 1984
Abstract The kinetics of crystallization of α-trizinc phosphate tetrahydrate (hopeite) has been investigated over a range of supersaturation under conditions of constant solution composition. Following inoculation of supersaturated solutions with well characterized seed crystals, the activities of ion species in the supersaturated solutions were ...
L. Perez, G.H. Nancollas
openaire   +1 more source

Kinetics of Crystallization. III

Zeitschrift für Elektrochemie, Berichte der Bunsengesellschaft für physikalische Chemie, 1957
AbstractThe rates of nucleation of crystalline cyclonite have been determined in aqueous acetone. The variations of the rate with supersaturation, solvent composition and temperature have been obtained. The results are discussed in relation to the Volmer theory.
W. J. Dunning, N. T. Notley
openaire   +1 more source

Kinetics of butterfat crystallization

Journal of the American Oil Chemists' Society, 1992
Fractionation of butterfat by melt crystallization is a commercial process in many countries for making butter fractions with varying melting, textural and flavor properties for use as food ingredients. However, the crystallization phenomena in this complex system are poorly understood and difficult to optimize and control.
D. S. Grall, R. W. Hartel
openaire   +1 more source