Preparation of poly(vinyl alcohol) hydrogels with radiation grafted citric and succinic acid groups

被引：36

作者：

Bodugöz, H ^{[1
]}

Pekel, N ^{[1
]}

Güven, O ^{[1
]}

机构：

[1] Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey

来源：

RADIATION PHYSICS AND CHEMISTRY | 1999年 / 55卷 / 5-6期

关键词：

hydrogel; poly(vinyl alcohol); radiation grafting; citric acid; succinic acid;

D O I：

10.1016/S0969-806X(99)00208-X

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：

Ternary mixtures of PVA/Citric acid (CA)/water and PVA/Succinic acid (SA)/water were gamma irradiated to various doses in air at ambient temperature. Gelation % vs dose curves were constructed and swelling behavior of gels with maximum conversions was studied. In maximum gelled systems 80% of CA used in the feed composition was retained in the gel structure whereas this was only 20% for SA. The volume of swelling of ionic PVA gels increased from 230% to 530% for PVA/CA systems when pH was increased from 2.6 to 7.5. Less significant increase in swelling was observed for PVA/SA gels, from 250% to 330% in the same pH interval. The incorporation of SA and CA groups onto PVA networks improved remarkably the affinity of these structures for Co2+ and Ni2+ ion uptake. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：667 / 671

页数：5

共 3 条

[1] PROTEIN PERMEATION THROUGH POLY(VINYL ALCOHOL) HYDROGEL MEMBRANES [J].