摘要
80年代初,Kurihara 等开发的 PEC—1000复合膜,首次实现了工业规模的海水一级淡化,并在无机和有机水溶液的分离和浓缩方面显示了巨大潜力。据分析这种高效分离膜的功能分离层的主要结构成分是糠醇(FA)和三(?)2一羟乙基(?)异氰尿酸酯(THEIC)
The linear condensation and sulfonation reactions of furfurylalcohol(FA)were studied by means of solution ^(13)C-NMR spectroscopy.Theeondesation and crosslinking reactions of FA and FA with tris(2-hydroxyethyl)isocyanurate(THEIC)were studied by solid-state ^(13)C-NMR spectroscopy.TheFA crosslinking structure obtained was somewhat different from Chuang and Ma-ciel's results.Terminal methyl group on furan ring was observed in the presenceof sulfuric acid.Addition of trioxane in FA condensation and sulfuric positionof furan ring were discussed.
基金
国家自然科学基金
5860406
关键词
糠醇
羟乙基
异氰尿酸酯
缩聚
磺化
furfuryl alcohol
tris(2-hydroxyethyl)isocyanurate
^(13)C-NMR spectroscopy
