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用21％或28％发烟硫酸-高氯酸引发四氢呋喃及环氧丙烷(THF:PO=100:5-15(克))进行共聚合反应,收率为50—60％,四氢呋喃的损耗不超过10—15％,产物分子量在1000—2000之间可调。与通常用三氟化硼或五氯化磷及二元醇制备的四氢呋喃-环氧丙烷共聚醚不同;当环氧丙烷用量低时,收率并不降低;产物的端羟基官能度为2;以伯醇端基为主(约65—70％)。
The copolymerization was carried out in 21% or 28% oleum-perchloric acid-initiated tetrahydrofuran and propylene oxide (THF: PO = 100: 5-15 (g)) in 50-60% yield with no loss of tetrahydrofuran More than 10-15%, product molecular weight between 1000-2000 adjustable. Unlike the polyether of tetrahydrofuran-propylene oxide, which is usually prepared from boron trifluoride or phosphorus pentachloride and glycols; the yield does not decrease when the amount of propylene oxide is low; the terminal hydroxyl functionality of the product is 2; Primary alcohol end groups (about 65-70%).