Pressure coefficient of the glass transition temperature in the thermodynamic scaling regime

被引：23

作者：

Koperwas, K. ^{[1
]}

Grzybowski, A. ^{[1
]}

Grzybowska, K. ^{[1
]}

Wojnarowska, Z. ^{[1
]}

Pionteck, J. ^{[2
]}

Sokolov, P. ^{[3
]}

Paluch, M. ^{[1
,3
]}

机构：

[1] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland

[2] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

[3] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

来源：

PHYSICAL REVIEW E | 2012年 / 86卷 / 04期

基金：

美国国家科学基金会;

关键词：

RELAXATION-TIME; STRUCTURAL RELAXATION; DIELECTRIC-RELAXATION; ORTHO-TERPHENYL; VOLUME; DYNAMICS; DEPENDENCE; POLYMERS; LIQUIDS; ENTROPY;

D O I：

10.1103/PhysRevE.86.041502

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report that the pressure coefficient of the glass transition temperature, dT(g)/dp, which is commonly used to determine the pressure sensitivity of the glass transition temperature T-g, can be predicted in the thermodynamic scaling regime. We show that the equation derived from the isochronal condition combined with the well-known scaling, TV gamma = const, predicts successfully values of dT(g)/dp for a variety of glass-forming systems, including van der Waals liquids, polymers, and ionic liquids.

引用

页数：6

共 51 条

[1] Temperature and Volume Effect on the Molecular Dynamics of Supercooled Ibuprofen at Ambient and Elevated Pressure [J].