室温离子液体1-烯丙基-3-甲基氯代咪唑和1-(2-羟乙基)-3-甲基氯代咪唑是丝素蛋白的新型良溶剂.丝素蛋白在1-烯丙基-3-甲基氯代咪唑和1-(2-羟乙基)-3-甲基氯代咪唑中的溶解度分别为14.5%(质量分数)(100℃)和8.0%(质量分数)(80℃).向离子液体丝素溶液中加入乙醇或正丁醇可获得再生丝素蛋白.XRD和FT-Raman研究表明再生丝素蛋白膜的构象主要是β-折叠结构.TGA数据表明再生丝素蛋白的热稳定性比天然丝素纤维有所降低,热失重残留物有所增加.同时,机械性能和溶失率分析结果显示从离子液体中再生的丝素蛋白表现出良好的湿态机械性能和优异的稳定性.
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