THE MEASUREMENT OF DIFFUSION AND FLOW IN POLYMER-SOLUTIONS USING DYNAMIC NMR MICROSCOPY

被引：16

作者：

XIA, Y

CALLAGHAN, PT

机构：

[1] Department of Physics and Biophysics, Massey University, Palmerston North

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1990年 / 34卷

关键词：

D O I：

10.1002/masy.19900340119

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The new method of dynamic NMR microscopy has been used to obtain velocity and diffusion maps for polymer solutions in capillary flow. In particular we observe power law shear‐thinning behaviour in poly(ethylene oxide) (PEO) solutions in the semi‐dilute regime but without slip at the walls. Some evidence is apparent for enhanced solvent diffusion along the shear axis in region of high shear. Copyright © 1990 Hüthig & Wepf Verlag

引用

页码：277 / 286

页数：10

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