Calorimetric determination of impurity content of liquid crystals

Author(s):  
L. Siklós ◽  
J. Szabon
1973 ◽  
Vol 28 (9-10) ◽  
pp. 533-554 ◽  
Author(s):  
Lothar Rafflenbeul ◽  
Wa-Ming Pang ◽  
Hansjürgen Schönert ◽  
Klaus Haberle

Abstract Isopiestic vapor pressure measurements and calorimetric determination of the heat of dilution have been performed and evaluated with respect to enthalpy, entropy and free enthalpy in the ternary solutions water+ glycin+ urea and water+ alanin + urea. The free enthalpy of transfer for the process: Amino acid from water to water+ urea, which can be derived from these measurements, does not agree with the value calculated from solubility measurements. The reason for this discrepancy and the values of entropy and enthalpy in terms of hydrophobic interaction are discussed. Supplementary measurements of the proton magnetic resonance in these solutions are included.


1969 ◽  
Vol 3 (4) ◽  
pp. 702-704 ◽  
Author(s):  
L.J. Broutman ◽  
T. Kobayashi ◽  
D. Carrillo

2014 ◽  
Vol 37 (6) ◽  
Author(s):  
Zeming Chen ◽  
Zijing Li ◽  
Yaqi Zhang ◽  
Riping Liu ◽  
Yongjun Tian ◽  
...  

1992 ◽  
Vol 139 (10) ◽  
pp. 2755-2759
Author(s):  
E. E. Kalu ◽  
R. E. White ◽  
E. C. Darcy

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