Universality of Separation Behavior of Relaxation Processes in Supercooled Aqueous Solutions As Revealed by Broadband Dielectric Measurements

2009 ◽  
Vol 113 (33) ◽  
pp. 11448-11452 ◽  
Author(s):  
Seiichi Sudo ◽  
Shin Yagihara
Keyword(s):  
Aqueous Solutions ◽  
Relaxation Processes ◽  
Dielectric Measurements ◽  
Separation Behavior

Ion Pairing and Solvent Relaxation Processes in Aqueous Solutions of Sodium Malonate and Sodium Succinate

2004 ◽  
Vol 108 (36) ◽  
pp. 13789-13795 ◽  
Author(s):  
Andrew Tromans ◽  
Peter M. May ◽  
Glenn Hefter ◽  
Takaaki Sato ◽  
Richard Buchner
Keyword(s):  
Aqueous Solutions ◽  
Sodium Succinate ◽  
Ion Pairing ◽  
Relaxation Processes ◽  
Solvent Relaxation ◽  
Sodium Malonate

Phase separation behavior of aqueous solutions of a thermoresponsive polymer

2005 ◽  
Vol 43 (20) ◽  
pp. 2937-2949 ◽  
Author(s):  
Yasuhiro Matsuda ◽  
Yuji Miyazaki ◽  
Shinji Sugihara ◽  
Sadahito Aoshima ◽  
Kazuya Saito ◽  
...  
Keyword(s):  
Phase Separation ◽  
Aqueous Solutions ◽  
Thermoresponsive Polymer ◽  
Phase Separation Behavior ◽  
Separation Behavior

scholarly journals Ionische dielektrische Relaxationsprozesse in Festkörpern, I / Ionic Dielectric Relaxation Processes in Solids, I

1973 ◽  
Vol 28 (11-12) ◽  
pp. 721-730 ◽  
Author(s):  
Günter Schön
Keyword(s):  
Activation Enthalpy ◽  
Low Frequency ◽  
Life Time ◽  
Relaxation Processes ◽  
Dielectric Measurements ◽  
Frequency Range ◽  
Kcal Mole ◽  
Type Layer ◽  
Frequency Relaxation ◽  
Cation Sites

Dielectric measurements have been made on single-crystals of mica-type layer silicates (vermiculites) in the frequency range between 30 Hz and 10 MHz. The migration of K+-and NH4+-interlayer cations by free cation sites causes a low-frequency relaxation. It is interpreted by the orientation of large dipoles they form with parent negative layer charges. For both ions the activation enthalpy of diffusion across the lattice is 11.94 kcal/mole. Additional N-H · · · O hydrogen bonds are formed by the NH4+ ions at low temperatures. There results a bond enthalpy of 1.3 kcal/mole and a life-time of 1.2 · 10-5 sec (at 40°C). A discussion of the different rate process equations yields the applicability of the Bauer equation.

Light Scattering Spectra of Water in Trehalose Aqueous Solutions: Evidence for Two Different Solvent Relaxation Processes

2009 ◽  
Vol 113 (22) ◽  
pp. 7874-7878 ◽  
Author(s):  
M. Paolantoni ◽  
L. Comez ◽  
M. E. Gallina ◽  
P. Sassi ◽  
F. Scarponi ◽  
...  
Keyword(s):  
Light Scattering ◽  
Aqueous Solutions ◽  
Relaxation Processes ◽  
Solvent Relaxation ◽  
Scattering Spectra
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