Radiation-chemical preparation of poly(vinyl alcohol) hydrogels

被引：4

作者：

Duflot, Anastasia V. ^{[1
]}

Kitaeva, Natalia K. ^{[1
]}

Duflot, Vladimir R. ^{[1
]}

机构：

[1] Branch JSC Sci & Res Inst Phys Chem, Obninsk 249033, Kaluga Region, Russia

来源：

RADIATION PHYSICS AND CHEMISTRY | 2015年 / 107卷

关键词：

Poly(vinyl alcohol); Glycidyl methacrylate; Radiation-chemical cross-linking; Hydrogel; Differential scanning calorimetry; Swelling; FREE-RADICAL POLYMERIZATION; CROSS-LINKING; NETWORKS; IRRADIATION;

D O I：

10.1016/j.radphyschem.2014.08.002

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：

This work reports the usage of method of radiation-chemical synthesis to prepare cross-linked hydrogels from poly(vinyl alcohol) modified with glycidyl methacrylate. Synthesis kinetics of modified poly(vinyl alcohol) and properties of hydrogels were studied. The gel fraction, swelling, mechanical properties, and water content of the hydrogels were measured. It was found that gel fraction increases with increasing radiation dose, concentration of modified poly(vinyl alcohol), and reaches 60%. It was established by differential scanning calorimetry that a fraction of the "bound" water in hydrogels is 50-70% and independent of gel fraction content. In addition to "bound" and "free" states, water in hydrogels is also present in the intermediate state. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：1 / 6

页数：6

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