Crosslinking and degradation of PVP hydrogels as a function of dose and PVP concentration

被引：28

作者：

Miranda, LF ^{[1
]}

Lugao, AB ^{[1
]}

Machado, LDB ^{[1
]}

Ramanathan, LV ^{[1
]}

机构：

[1] IPEN CNEN SP, BR-05422970 Sao Paulo, Brazil

来源：

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

关键词：

crosslinking and degradation of PVP hydrogels;

D O I：

10.1016/S0969-806X(99)00216-9

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：

Swelling was performed on dried membranes, normal ones and dried gel to unravel the role of crosslinking and degradation on polymeric structure during drying and hydration process. The comparison of the swelling results suggested that the network were formed only by PVP molecules. The complex mixture of macromolecules showed a irreversible behavior upon drying and hydration, probably as a function of PEG and/or agar entangling in effective physical crosslink. The best network regularity and useful properties was found at 20-30 kGy. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：709 / 712

页数：4

共 4 条

[1] Study of wound dressing structure and hydration/dehydration properties [J].