The diffusion and bulk properties of polyurethane (PU)-based hydrophilic and hydrophobic membranes

被引：15
|
作者：
Pulat, M [1 ]
Akdogan, A [1 ]
机构：
[1] Gazi Univ, Fen Edebiyat Fak, Kimya Bolumu, TR-06500 Ankara, Turkey
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2002年 / 85卷 / 01期
关键词：
polyurethane; acrylamide; itaconic acid; diclofenac-Na; membrane; diffusion; permeability coefficient; scanning electron microscopy;
D O I：
10.1002/app.10596
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this study, the diffusion characteristics of diclofenac-Na through hydrophobic and hydrophilic polyurethane (PU)-based membranes are investigated. Hydrophilic polymers are obtained by g-raft copolymerization of PU with acriylamide (AA-m) and itaconic acid (IA), The membranes are prepared by a solvent-casting method and characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) analysis. The diffusion measurements are performed using a diffusion cell for 10 h at 37degreesC. Permeability coefficients calculated from diffusion experiments are similar to3 times higher in hydrophilic membranes than hydrophobic PU membranes. (C) 2002 Wiley Periodicals, Inc.
引用
收藏
页码：193 / 198
页数：6
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