MOLECULAR SHAPE IN HOMOGENEOUS FLOWS - PREDICTIONS OF THE ROUSE MODEL

被引：5

作者：

HOAGLAND, DA ^{[1
]}

PRUDHOMME, RK ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT CHEM ENGN,PRINCETON,NJ 08544

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1988年 / 27卷 / 02期

关键词：

MATHEMATICAL MODELS - POLYMERS - Molecular Structure;

D O I：

10.1016/0377-0257(88)85015-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An analysis of the P. E. Rouse Jr. model is used to predict the shape of flexible, free-draining polymers in homogeneous flows. The derivation is based on the A. S. Lodge-Y. Wu/H. C. Booij-P. H. Van Wiechen solution for the configurational distribution function of a Rouse chain, which consists of a free-draining string of beads connected by Hookean springs. Much of the theoretical development parallels the one used by H. H. Saab et al. to predict link orientations for the same molecular model; rather than solving for link orientation, however, we solve for bead location. The function P// nu (U, t), which describes the spatial distribution of bead nu about the chain center of the mass in the presence of hydrodynamic forces, is a key development of this contribution.

引用

页码：223 / 243

页数：21

共 18 条

[1]

Bird R.B., 1987, DYNAMICS POLYM LIQUI, VII

[2]

DEBYE P, 1951, J CHEM PHYS, V20, P1337

[3]

Gradshteyn I. S., 1980, TABLES OF INTEGRALS

[4] LOW-ANGLE SCATTERING FROM FLEXIBLE, FREE-DRAINING POLYMERS IN HOMOGENEOUS FLOWS [J].