摘要
采用LiBr/C2H5OH混合溶剂制备丝素(SF)溶液,与聚乙烯醇(PVA)水溶液进行溶液共混后得到PVA/SF共混膜,采用扫描电镜,差示扫描量热分析,红外光谱,X射线衍射等方法对共混膜进行了形态和结构表征。研究表明,相对于将PVA水溶液与SF水溶液共混得到的共混体系,此方法制备的体系中两组分的相容性得到了一定程度的提高。在SF含量较小的情况下,共混体系中几乎观察不到两相结构的存在。证明在PVA/SF体系中,SF的溶剂选择及SF的含量影响两种组分的相容性。
The polyvinyl alcohol （ PVA） /silk fibroin（SF） blend membranes were prepared by PVA aqueous solution mixed with SF solution which was prepared by LiBr/C2H5OH blend solvent. The conformation and structure of blend membranes were characterized by scanning electron microscope （SEM）, differential scanning calorimeter analysis （DSC）, fourier transform infrared spectroscopy（FT-IR）, X-ray diffraction（XRD）. Compared with the method of blending PVA and SF aqueous solution, the compatibility of two components of the system getting from this method were improved in some degree. With small content of SF, two-phase structure was not observed nearly in the blend system The result shows that the solvent and proportion of SF in the blend affect the compatibility of two components in PVA/SF blend system.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第5期67-70,共4页
Polymer Materials Science & Engineering
基金
国家重点基础研究发展计划973计划(2005CB62306)
关键词
聚乙烯醇
丝素
共混膜
相容性
polyvinyl alcohol
silk fibroin
blend membrane
compatibility
