The Temperature-Dependence of Hydrophobic Association in Water. Pair versus Bulk Hydrophobic Interactions

1997 ◽  
Vol 119 (18) ◽  
pp. 4206-4213 ◽  
Author(s):  
Susanna Lüdemann ◽  
Roger Abseher ◽  
Hellfried Schreiber ◽  
Othmar Steinhauser
Keyword(s):  
Temperature Dependence ◽  
Hydrophobic Interactions ◽  
Hydrophobic Association

Enthalpy–Entropy Compensation for Micellization and Other Hydrophobic Interactions in Aqueous Solutions

1974 ◽  
Vol 52 (10) ◽  
pp. 1834-1839 ◽  
Author(s):  
Carmel Jolicoeur ◽  
Patrick R. Philip
Keyword(s):  
Critical Micelle Concentration ◽  
Aqueous Solutions ◽  
Temperature Dependence ◽  
Hydrophobic Interactions ◽  
Ionic Surfactants ◽  
Pairwise Interactions ◽  
Hydrophobic Solutes

The temperature dependence of the critical micelle concentration for 26 ionic and 48 non-ionic surfactants in aqueous solutions has been reexamined and used to calculate ΔHm0 and ΔSm0, the heats and entropies of micellization, at 25 and 50 °C. ΔHm0 and ΔSm0 values exhibit a significant correlation with compensation temperatures (Tc) of 319 and 222 °K at 25 °C for the groups of ionic and non-ionic surfactants respectively. These results are compared with Tc values which are expected to be characteristic of pairwise interactions between hydrophobic solutes.

Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

1982 ◽  
Vol 40 ◽  
pp. 78-79
Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser
Keyword(s):  
Electron Beam ◽  
Fatty Acid ◽  
Inelastic Scattering ◽  
Temperature Dependence ◽  
Structural Damage ◽  
Direct Result ◽  
Second Step ◽  
Strong Temperature Dependence ◽  
Electron Dose ◽  
Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

Temperature Dependence of Magnetic Domains and Wall Structures

1972 ◽  
Vol 30 ◽  
pp. 496-497
Author(s):  
Sonoko Tsukahara ◽  
Tadami Taoka ◽  
Hisao Nishizawa
Keyword(s):  
Temperature Dependence ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Iron Film ◽  
Objective Lens ◽  
Lorentz Microscopy ◽  
Domain Structures ◽  
Wall Structures ◽  
Crystal Films ◽  
Metallurgical Structure

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.

Temperature dependence of generation-recombination noise in p-n junctions

2002 ◽  
Vol 12 (3) ◽  
pp. 71-74
Author(s):  
J. A. Jiménez Tejada ◽  
A. Godoy ◽  
A. Palma ◽  
P. Cartujo
Keyword(s):  
Temperature Dependence
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