CASE-II DIFFUSION IN THE PVC AND ACETONE SYSTEM

被引:11
作者
PERRY, KL
MCDONALD, PJ
CLOUGH, AS
机构
[1] Department of Physics, University of Surrey, Guildford
关键词
NUCLEAR MAGNETIC RESONANCE; DIFFUSION; PVC; ACETONE;
D O I
10.1016/0730-725X(94)91521-0
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
This paper describes how nuclear magnetic resonance (NMR) has been used to study case II diffusion of acetone into PVC. NMR is supported by ion Beam Nuclear Reaction Analysis and Gravimetric Analysis. A series of experiments with different PVC exposure times to acetone vapour have shown the observable physical characteristics of ease II diffusion. Experiments in the temperature range 20-50 degrees C have yielded the temperature dependence of the front velocity and the T-2 values of the acetone and PVC components.
引用
收藏
页码:217 / 219
页数:3
相关论文
共 6 条
[1]  
Weisenburger, Koenig, NMR Imaging of case II diffusion in glassy polymers, Journal of Polymer Science Part C: Polymer Letters, 27, (1989)
[2]  
Weisenburger, Koenig, NMR Imaging of solvent diffusion in polymers, Applied Spectroscopy, 43, (1989)
[3]  
Marechi, Donstrup, Rigamonti, NMR Imaging and relaxation study of polymer swelling and chain dynamics, Journal of Molecular Liquids, 38, (1988)
[4]  
Thomas, Windle, Transport of methanol in poly(methylmethacrylate), Polymer, 19, (1978)
[5]  
Cottrell, Halse, Strange, NMR imaging of solids using large oscillating field gradients, Meas. Sci. Technol., 1, (1990)
[6]  
McDonald, Perry, Roberts, A repetitive pulse variant of broadline gradient echo magnetic resonance imaging, Meas. Sci. Technol., 4, (1993)