Dynamic thermal expansivity near the glass transition

被引:21
作者
Bauer, C
Richert, R
Böhmer, R [1 ]
Christensen, T
机构
[1] Univ Mainz, Inst Phys Chem, D-55099 Mainz, Germany
[2] Roskilde Univ Ctr, IMFUFA, DK-4000 Roskilde, Denmark
关键词
D O I
10.1016/S0022-3093(99)00667-5
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Dielectric techniques were used to investigate the thermal expansivity of polystyrene films. Capacitive scanning dilatometry (CSD) employs temperature ramping in order to monitor the non-linear structural relaxation in the glass transformation range and to quantify liquid fragility. In the linear response regime, the complex thermal expansivity is obtained as a function of the temperature cycling frequency and is observed to reflect the structural relaxation. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:276 / 281
页数:6
相关论文
共 25 条
[1]  
BAUER C, IN PRESS PHYS REV E
[2]   ELASTIC AND VISCOELASTIC PROPERTIES OF AMORPHOUS SELENIUM AND IDENTIFICATION OF THE PHASE-TRANSITION BETWEEN RING AND CHAIN STRUCTURES [J].
BOHMER, R ;
ANGELL, CA .
PHYSICAL REVIEW B, 1993, 48 (09) :5857-5864
[3]  
Brandrup J., 1975, POLYM HDB
[4]   DETERMINATION OF THE FREQUENCY-DEPENDENT BULK MODULUS OF GLYCEROL USING A PIEZOELECTRIC SPHERICAL-SHELL [J].
CHRISTENSEN, T ;
OLSEN, NB .
PHYSICAL REVIEW B, 1994, 49 (21) :15396-15399
[5]  
Ferry D.J., 1980, Viscoelastic Properties of Polymers, V3e
[6]   Glass transition temperature and dynamics of α-process in thin polymer films [J].
Fukao, K ;
Miyamoto, Y .
EUROPHYSICS LETTERS, 1999, 46 (05) :649-654
[7]  
FUKAO K, IN PRESS PHYS REV E
[8]   Fragility in liquids and polymers: New, simple quantifications and interpretations [J].
Green, JL ;
Ito, K ;
Xu, K ;
Angell, CA .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (20) :3991-3996
[9]   THERMAL CONTRACTION AND VOLUME RELAXATION OF AMORPHOUS POLYMERS [J].
GREINER, R ;
SCHWARZL, FR .
RHEOLOGICA ACTA, 1984, 23 (04) :378-395
[10]   Relation between freezing-in due to linear cooling and the dynamic glass transition temperature by temperature-modulated DSC [J].
Hensel, A ;
Schick, C .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 235 :510-516