Zobrazeno 1 - 10
of 100
pro vyhledávání: '"L. W. Reeves"'
Publikováno v:
Journal of Applied Physics. 67:6648-6653
We discuss the thermal and optical properties of the lyotropic liquid crystal decylammonium chloride/water/NH4Cl (DACl‐LLC) from −40 to 80 °C. Combined use of DACl‐LLC and highly tapered monomode optical fibers allows sensing of temperature (f
Autor:
L. W. Reeves, A. S. Tracey
Publikováno v:
Journal of the American Chemical Society. 96:1198-1205
Publikováno v:
Molecular Crystals and Liquid Crystals. 88:273-280
Five para-alkyl substituted phenols have been studied as solutes in two chemically different type II DM mesophases. The degrees of order for the aromatic ring, are not significantly affected by the different short alkyl chains, showing that the ancho
Autor:
L. W. Reeves, M. A. Desando
Publikováno v:
Canadian Journal of Chemistry. 64:1823-1828
Critical micelle concentrations have been determined for potassium n-octanoate in deuterium oxide over a wide temperature range, 29–123 °C, from the concentration dependence of proton nmr spectral parameters (peak positions, and vicinal splitting
Publikováno v:
Liquid Crystals. 3:771-781
A series of lyotropic nematic liquid crystals based on aniso-dimensional micelles can be subdivided according to micelle shape and diamagnetic susceptibility anisotropy. The proton magnetic resonance spectra of benzene dissolved in dilute solution in
Autor:
L. W. Reeves, M. A. Desando
Publikováno v:
Canadian Journal of Chemistry. 63:2628-2632
The inclusion of clay (bentonite) (ca. 0.08–0.64 wt.%) in the lyotropic mesophase formed by potassium dodecanoate + KCl + 2H2O has been observed by 2H nmr not to alter the type I CM character of the phase. Relaxation of the mesophase director has b
Autor:
L. W. Reeves, A. S. Tracey
Publikováno v:
Journal of the American Chemical Society. 97:5729-5735
Publikováno v:
Journal of the American Chemical Society. 96:5349-5356
Publikováno v:
Organic Magnetic Resonance. 6:129-132
The molecule N,N-dimethylacetoacetamide, which is subject to a keto–enol equilibrium process in solution, also exhibits hindered rotation about the amido NC bond. The hindered rotation rates have been studied by lineshape fit methods of the nuclear
Publikováno v:
Inorganic Chemistry. 15:1035-1038