| 聚天冬氨酸/海藻酸钠高吸水树脂的合成与评价 |
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| 引用本文： | 马娇娇,谭天伟,凌沛学.聚天冬氨酸/海藻酸钠高吸水树脂的合成与评价[J].北京化工大学学报(自然科学版),2010,37(1):98-101. |
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| 作者姓名： | 马娇娇 谭天伟 凌沛学 |
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| 作者单位： | 北京化工大学 生命科学与技术学院, 北京 100029 |
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| 基金项目： | 国家自然科学基金(20636010) |
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| 摘 要： | 利用化学交联法制备聚天冬氨酸与海藻酸钠半互穿型高吸水树脂,所得产物并不改变原有的可降解等性质,经筛选测试确定海藻酸钠的最佳复配比例为4%,这一比例的半互穿产物在纯水中的溶胀率比纯聚天冬氨酸树脂提高21.9%,经傅立叶红外等分析发现合成的半互穿高吸水树脂仍然存在交联聚天冬氨酸的网络结构,海藻酸钠的特征基团也有相应特征吸收。SEM观察到海藻酸钠的加入提高产物树脂的孔径大小,增加孔的数量,说明树脂提高了对水的吸附和溶胀能力。
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| 关 键 词： | 聚天冬氨酸 海藻酸钠 高吸水树脂 半互穿 溶胀率 |
| 收稿时间： | 2009-04-16 |
Synthesis and evaluation of a high water-absorption capacity resin composed of sodium alginate and polyaspartic acid |
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| MA JiaoJiao,TAN TianWei,LING PeiXue.Synthesis and evaluation of a high water-absorption capacity resin composed of sodium alginate and polyaspartic acid[J].Journal of Beijing University of Chemical Technology,2010,37(1):98-101. |
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| Authors: | MA JiaoJiao TAN TianWei LING PeiXue |
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| Institution: | College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Semi-interpenetrating polymer networks(semi-IPNs) of polyaspartic acid(PASP) and sodium alginate(AGS) have been synthesized by chemical cross-linking.The product retains the biodegradable properties of the precursors,whilst the swelling ratio increases by 21.9%.FT-IR spectroscopy confirmed that there are cross-linking networks of PASP and AGS.SEM micrographs show the surface morphological changes which occur on forming the semi-IPN;compared with the reactants,there are a larger number of pores and the size ... |
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| Keywords: | polyaspartic acid sodium alginate high water-absorption capacity resin semi-IPNs swelling ratio |
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