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中文摘要：
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。
英文摘要：
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 of the pores is larger. This explains why the swelling ratio increases.
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