Introduced different molecular weight PEG in chitosan by solventcasting method, the blending system had good compatibility, reached homogeneous phase of the thermodynamic level.
用溶液浇铸法在壳聚糖中引入的不同分子量的聚乙二醇，共混体系相容性好，实现了热力学水平上的均相。
2
Solvent system including solvent and nonsolvent in membrane casting solution plays an important role for making the morphology of asymmetric membrane.
铸膜液的溶剂体系(溶剂和非溶剂)对不对称膜形态的形成有重要作用。
3
Cellulose acetate (ca) ultrafiltration membranes are made from casting solutions obtained by dissolving ca in acetone-formamide mixed solvent.