A dielectric fallacy in inferring Tg of water -: art. no. 036101

被引:5
作者
Johari, GP [1 ]
机构
[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada
关键词
D O I
10.1063/1.1835272
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In a recent analysis, Angell [Annu. Rev. Phys. Chem. 55, 559 (2004)] concluded that if water's T g is assumed to be 160 K, the plot of dielectric loss tangent tan δ against T/T g for unsintered amorphous solid water overlaps the corresponding plots for glycerol and propylene carbonate. We point out that such an analysis falsifies both dielectrics and molecular kinetics, and is not useful for ascertaining T g. © 2005 American Institute of Physics.
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页数:3
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