Synthesis and characterization of an interpenetrating polymer network composed of poly(methacrylic acid) and poly(vinyl alcohol)

被引:17
作者
Kim, SJ [1 ]
Yoon, SG [1 ]
Kim, SI [1 ]
机构
[1] Hanyang Univ, Dept Biomed Engn, Seoul 133791, South Korea
关键词
poly(methacrylic acid); poly(vinyl alcohol); interpenetrating networks (IPN);
D O I
10.1002/pi.1659
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Temperature and pH-responsive interpenetrating polymer network (IPN) hydrogels, constructed with poly (methacrylic acid) (PMAA) and poly(vinyl alcohol) (PVA), by a sequential IPN method, were studied. The characterization of IPN hydrogels was investigated by Fourier-transform infrared spectroscopy, differential scanning calorimetry (DSC) and swelling under various conditions. The IPN hydrogels exhibited relatively high swelling ratios, in the range 230-380 %, at 25 degreesC. The swelling ratios of the PMAA/PVA IPN hydrogels were pH and temperature dependent. DSC was used for the quantitative determination of the amounts of freezing and non-freezing water. The amount of free water increased with increasing PMAA content in the IPN hydrogels. (C) 2004 Society of Chemical Industry.
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页码:149 / 152
页数:4
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