TEMPERATURE AND PRESSURE-DEPENDENCE OF SELF-DIFFUSION IN LONG LIQUID NORMAL-ALKANES

被引：36

作者：

VARDAG, T

KARGER, N

LUDEMANN, HD

机构：

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1991年 / 95卷 / 08期

关键词：

DIFFUSION; HIGH PRESSURE; LIQUIDS; SPECTROSCOPY; NUCLEAR MAGNETIC RESONANCE; TRANSPORT PROPERTIES;

D O I：

10.1002/bbpc.19910950803

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：

A titanium autoclave for the determination of self diffusion coefficients by the pulsed field gradient spin-echo method is described, that has been used in the temperature range between 200 and 500 K at pressures up to 600 MPa. - In a first series of experiments, melts of n-alkanes with chain lengths between 16 and 154 carbon atoms were studied. The data are analyzed with modifications of the hard sphere model and tested against the Rouse- and reptation model.

引用

页码：859 / 865

页数：7

共 32 条

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