Complex formation of silk fibroin with poly(acrylic acid)
Complex formation of silk fibroin with poly(acrylic acid)
复制标题
丝素蛋白与聚丙烯酸复合形成
DOI：
10.1295/polymj.32.269
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发表时间：
2000-01-01
期刊：
影响因子：
2.8
通讯作者：
Yu, TY
中科院分区：
文献类型：
--
作者：
Gao, QW;Shao, ZZ;Yu, TY
丝素蛋白（SF）和聚丙烯酸（PAA）在水溶液中混合时会发生相互作用。粘度法研究表明，SF/PAA复合物的形成依赖于稀溶液中SF和PAA的比例。SF/PAA复合物随混合溶液浓度的增加由可溶态向凝胶态和沉淀态转变。FT-IR结果表明，PAA与SF在复合物中易形成氢键，SF的构象发生变化。红外光谱分析表明，PAA/SF复合晶体的形成和结晶完整性依赖于SF和PAA的比例，X射线衍射分析证实了这一点。
Silk fibroin (SF) and poly(acrylic acid) (PAA) can interact when their aqueous solutions were mixed. Viscometric study showed that SF/PAA complex formation depended on the ratios of SF and PAA in dilute solution. SF/PAA complexes varied from soluble state to gel and to precipitate when both concentrations of mixed solution were increased gradually. FT-IR results showed that PAA and SF were liable to form interpolymer hydrogen bonds, and SF conformation changed in the complexes. FT-IR spectra also suggested the formation and crystal perfection of PAA/SF complex crystal relied on the ratios of SF and PAA, which were confirmed by the observation of X-ray diffraction.