Kinetics of heterogeneous nucleation of n-alcohol crystals from solution assisted by template thin films of monoacylglycerols and fatty acids

Article Abstract:

The presence of vapor-deposited thin films of monoacylglycerols and long chain fatty acids accelerated the kinetic measurements made on heterogeneous nucleation of long-chain n-alcohol crystals from solution. Template-solution interactions through van der Waals forces and hydrogen bonding at the interfaces of the template films and solution are differently operative in the two sets of the thin films templates and the guest materials.

Dynamics, Dynamics (Mechanics)

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Comparing the morphology of beta-n.n.n with beta'-n.n+2.n and beta'-n.n.n-2 triglycerol crystals

Article Abstract:

The morphology of beta-16.16.16, beta'-10.12.10 and beta'-16.16.14 fat crystals was explained on the basis of a connected net account taking into account the edge energies of a 2D nucleation growth mechanism. The morphology of the three fats ranges from long needles in spherulitic growth from long needles in spherulitic growth forms to lozenge shaped single crystals.

All Other Miscellaneous Nonmetallic Mineral Product Manufacturing, Crystals, Chemistry, Physical and theoretical, Physical chemistry

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Hydrogen bonding and the cryoprotective properties of glycerol/water mixtures

Article Abstract:

Molecular dynamics simulations and infrared spectroscopy are applied to investigate the hydrogen bond patterns of glycerol and its mixtures with water. Hydrogen bond patterns are addressed in terms of hydrogen bond angle distributions and average hydrogen bond number and also its affect on the cryoprotective properties of these solutions.

Analysis, Molecular dynamics, Hydrogen bonds, Optical properties, Infrared spectroscopy, Structure

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