Coordinate transformation and implicit time discretization for diffusion in glassy polymers

Authors
Abd-el-Salam, MR Sehata, MH
Citation
Mr. Abd-el-salam et Mh. Sehata, Coordinate transformation and implicit time discretization for diffusion in glassy polymers, APPL MATH C, 113(2-3), 2000, pp. 199-218
Citations number
7
Categorie Soggetti
Engineering Mathematics
Journal title
APPLIED MATHEMATICS AND COMPUTATION
ISSN journal
00963003 → ACNP
Volume
113
Issue
2-3
Year of publication
2000
Pages
199 - 218
Database
ISI
SICI code
0096-3003(20000715)113:2-3<199:CTAITD>2.0.ZU;2-K
Abstract
This paper describes and studies two different problems occurring in the fo rmation and use of pharmaceuticals via controlled release methods. These pr oblems involve a glassy polymer and a penetrant, and the central problem is to predict and control the diffusive behavior of the penetrant through the polymer. The mathematical theory yields free boundary problems which are s tudied in various cases. (C) 2000 Elsevier Science Inc. All rights reserved .