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2001 (1)
1Author    H. Schmalfuss, W. Weissflog, A. Würflinger3, S. Masberg3, G. M. Schneider3Requires cookie*
 Title    Thermodynamic Measurements on Selected Liquid Crystals at Normal and Elevated Pressures  
 Abstract    Densities have been determined for two 5-n-alkyl-2-(4-isothiocyanatophenyl)-l,3-dioxanes (6DBT, 10DBT), 4-n-tetradecyl-4'-cyanobiphenyl (14CB), 4-n-octyl-4'-thiocyanatobiphenyl (8BT) and two laterally aryl-branched mesogens 4-cyanobenzyl 5-(4-n-octyloxybenzoyloxy)-2-undecyloxybenzoate (4CNOUB), 3-cyanobenzyl 2,5-bis(4-n-octyloxybenzoyloxy)benzoate (3CN-BOB). The densities have been measured in the isotropic, nematic (only 3CNBOB) and smectic phases with a vibrating tube densimeter. The densities decrease with increasing alkyl chain length within a homologous series. Furthermore the enthalpy changes accompanying the phase transitions have been determined by DSC. 
  Reference    Z. Naturforsch. 56a, 262—266 (2001); received December 5 2000 
  Published    2001 
  Keywords    Specific Volumes, Density, DSC, Liquid Crystals, Thermodynamics 
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 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0262.pdf 
 Identifier    ZNA-2001-56a-0262 
 Volume    56