Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Gerald R. Van Hecke"'
Autor:
Hannah S. Slocumb, Gerald R. Van Hecke
Publikováno v:
Liquids, Vol 4, Iss 2, Pp 402-414 (2024)
Density, viscosity, refractive index, and ultrasonic velocity were measured for the pure materials anisole, methanol, and toluene, and for the binary mixtures: methanol—anisole and methanol—toluene. Excess molar volume VE, isobaric thermal compre
Externí odkaz:
https://doaj.org/article/0e8d94169b164282bafddef9b0754e17
Publikováno v:
Thermo, Vol 3, Iss 4, Pp 537-548 (2023)
Specific heat capacity at constant pressure cp (J K−1 g−1) is an important thermodynamic property that helps material scientists better understand molecular structure and physical properties. Engineers control temperature (through heat transfer)
Externí odkaz:
https://doaj.org/article/120d9a92aa884894a8b9f1168a1d6f17
Publikováno v:
Journal of Chemical & Engineering Data. 67:1037-1053
Publikováno v:
The Journal of Physical Chemistry B. 116:3816-3822
When mixed with water, n-octyl β-D-glucoside forms self-assembled nanostructures, several of which are liquid crystalline and all of which depend on the water/glucoside ratio and temperature. For practical use of these phases, a detailed understandi
Publikováno v:
Physical chemistry chemical physics : PCCP. 17(2)
We report here the first example of a new and novel method of determining the binary temperature-composition phase diagram of a chromonic material in water using its intrinsic fluorescence. Disodium cromoglycate, or cromolyn, is an anti-allergy medic
Publikováno v:
Liquid Crystals. 30:831-837
The heat capacity of the metallomesogen purple cobalt stearate Co(O2CC17H35)2 has been measured by adiabatic calorimetry at temperatures between 16 and 420 K. This compound exhibits two crystalline phases (low temperature Cr2 and high temperature Cr1
The Nature of Phase Transitions in Reentrant CBOBP: 4-Cyanobenzoyloxy-4′-Octylbenzoyloxy-p-Phenylene
Autor:
April E. Hassel, Gerald R. Van Hecke
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 330:53-63
The phase transitions of 4-cyanobenzoyloxy-4′-octylbenzoyloxy-p-phenylene (CBOBP) were proposed to be doubly reentrant with the phase sequence: crystal to SA1 to N to SAd to N to I. We have reinvestigated the thermal behavior of CBOBP in light of t
Publikováno v:
The Chemical Educator. 2:1-11
Using a simple 633-nm He/Ne or diode laser, the variation of the refractive indices of four ortho-substituted dihalogenated benzenes can be obtained, demonstrating the phenomenon of polarizability. In addition, this exercise is an excellent display o
Autor:
Jon M. Sorenson, Gerald R. Van Hecke
Publikováno v:
The Journal of Physical Chemistry. 98:10289-10293
Publikováno v:
Liquid Crystals. 10:341-346
The title compound HAT-C8 exhibits a columnar to isotropic phase transition at 402·16 K. Dilatometric studies of pure HAT-C8 as a function of temperature show the higher temperature isotropic phase to be denser than the lower temperature columnar me