Radiation synthesis and characterization of N-vinyl-2-pyrrolidone/N-allylthiourea hydrogels and their use in the adsorption of invertase

被引：0
|
作者：
Sen, M [1 ]
Pekel, N [1 ]
Guven, O [1 ]
机构：
[1] Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey
来源：
ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1998年 / 257卷
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D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
N-Vinyl-2-pyrrolidone/N-allylthiourea (VP/ATU) copolymeric hydrogels were prepared by gamma-irradiating ternary mixtures of VP/ATU/water. The influence of the ATU on the gelation of VP, on the network structure and on the adsorption of invertase was investigated. VP/ATU copolymeric hydrogels were found to swell in the range of 950-2500%. The water diffusion to the hydrogels is a non-Fickian type diffusion and the diffusion coefficients varied from 15.4.10(-8) to 1.5.10(-8) m(2) s(-1). The adsorption capacity of the hydrogels was found to increase from 8.0 to 380.0 mu g invertase/g dry gel with increasing amount of ATU, and loss in activity with adsorption is approximately threefold.
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页码：1 / 6
页数：6
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