DISSOLUTION OF MACROMOLECULES .I. SURFACE PHENOMENA ASSOCIATED WITH POLYMER DISSOLTUION

被引:18
作者
HEYD, A
KILDSIG, DO
BANKER, GS
机构
[1] Industrial and Physical Pharmacy Department, School of Pharmacy and Pharmacal Sciences, Purdue University, Lafayette, Indiana
[2] School of Pharmacy, University of Connecticut, Storrs, Connecticut
关键词
Diagram—polymer dissolution test apparatus; Dissolution—macromolecules; Polymer disk dissolution—surface phenomena; Solvent penetration—polymer swelling;
D O I
10.1002/jps.2600580515
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A series of polymer free acids, derived from ethylene maleic anhydride resins has been used to study solvent penetration into a polymer compressed disk and polymer swelling. The influence of polymer molecular weight and solvent pH on solvent penetration and polymer swelling was determined. The rate of disappearance of the hydrated layer, formed by simultaneous swelling and solvent penetration, was found to agree closely with the rate of solvent penetration. Copyright © 1969 Wiley‐Liss, Inc., A Wiley Company
引用
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页码:586 / &
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