DIELECTRIC-RELAXATION IN POLAR AND VISCOELASTIC FLUIDS WITH INTERNAL-ROTATION

被引:12
|
作者
DAVALOSOROZCO, LA
DELCASTILLO, LF
机构
[1] Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de México, 04510, México, D.F.
来源
JOURNAL OF CHEMICAL PHYSICS | 1992年 / 96卷 / 12期
关键词
D O I
10.1063/1.462219
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
Using the formalism of extended irreversible thermodynamics we derive the generalized constitutive equations for the polarization vector and the symmetric and antisymmetric parts of the total stress tensors (the sum of the Maxwell and viscous stress tensors) of a viscoelastic polar fluid. The analysis of these equations shows several interesting features for a permanent dipolar system. The diffusive transport of polarization charge and the diffusion of the transverse polarization component are two elementary physical processes in terms of which complex cases of dielectric relaxation can be described, taking into account both translational and rotational motions of the dipolar particles in a viscoelastic fluid. The calculations for several cases of the complex dielectric susceptibility are presented. In these results, the coupling between polarization and hydrodynamics predicts several modes of dielectric energy dissipation. These various channels are due to the intimate coupling between different degrees of freedom, taken into account by the constitutive equations. The calculation of the complex shear and rotational viscosities complete the presentation.
引用
收藏
页码:9102 / 9113
页数:12
相关论文
共 50 条
  • [41] MAGNETIC-RELAXATION UNDER FAST INTERNAL-ROTATION IN LIQUIDS
    VERSMOLD, H
    JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (10): : 5310 - 5313
  • [42] MAGNETIC-RELAXATION UNDER FAST INTERNAL-ROTATION IN LIQUID
    SUCHANSKI, W
    BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1993, 97 (05): : 720 - 726
  • [43] NUCLEAR MAGNETIC-RELAXATION UNDER HINDERED INTERNAL-ROTATION
    VERSMOLD, H
    JOURNAL OF CHEMICAL PHYSICS, 1973, 58 (12): : 5649 - 5653
  • [44] INTERNAL-ROTATION IN ACETONE
    CRIGHTON, JS
    BELL, S
    JOURNAL OF MOLECULAR SPECTROSCOPY, 1986, 118 (02) : 383 - 396
  • [45] INTERNAL-ROTATION IN ACETALDEHYDE
    BAUDER, A
    GUNTHARD, HH
    JOURNAL OF MOLECULAR SPECTROSCOPY, 1976, 60 (1-3) : 290 - 311
  • [46] INTERNAL-ROTATION OF THE SUN
    DUVALL, TL
    DZIEMBOWSKI, WA
    GOODE, PR
    GOUGH, DO
    HARVEY, JW
    LEIBACHER, JW
    NATURE, 1984, 310 (5972) : 22 - 25
  • [47] INTERNAL-ROTATION IN DICYCLOPROPYLACETYLENE
    LIBERLES, A
    JOURNAL OF ORGANIC CHEMISTRY, 1976, 41 (19): : 3207 - 3207
  • [48] DIELECTRIC-RELAXATION AND DIELECTRIC FLUCTUATIONS
    TITULAER, UM
    JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1978, 11 (08): : 1657 - 1669
  • [49] Relaxation phenomena in viscoelastic colloidal suspensions with internal rotation
    DavalosOrozco, LA
    delCastillo, LF
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 178 (01) : 69 - 79
  • [50] COMPARISON OF DIELECTRIC-RELAXATION AND VISCOELASTIC RETARDATION IN 3 VISCOUS-LIQUIDS
    SHEARS, MF
    WILLIAMS, G
    BARLOW, AJ
    LAMB, J
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1974, 70 : 1783 - 1793