| 四氢呋喃开环聚合的研究 |
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| 引用本文： | 张鸿志,董修智,冯新德.四氢呋喃开环聚合的研究[J].高分子学报,1978,0(2):119-123. |
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| 作者姓名： | 张鸿志 董修智 冯新德 |
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| 作者单位： | 北京大学化学系
(张鸿志，董修智)，北京大学化学系(冯新德) |
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| 摘 要： | 四氢呋喃(THF)通过正离子开环聚合制得的聚丁二醇(PTMG)是生产聚氨酯及聚酯弹性材料的重要原料。对PTMG的一般要求是平均分子量在600—3000之间,两个端基为羟基。一般用下列三类催化剂制备的:醋酸酐-高氯酸,氟磺酸及发烟硫酸,用醋酸酐-高氯酸为催化剂制得的聚四氢呋喃,是以醋酸酯基(—OAC)为端基,尚需进一步水解反应,使端基变为羟基。用氟磺酸为催化剂,虽然产物的端基为羟
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| 收稿时间： | 1978-04-03 |
STUDIES ON THE RING-OPENING POLYMERIZATION OF TETRAHYDROFURAN |
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| Chang Hung-tse,Tung Shiu-tze,Voong Sing-tuh.STUDIES ON THE RING-OPENING POLYMERIZATION OF TETRAHYDROFURAN[J].Acta Polymerica Sinica,1978,0(2):119-123. |
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| Authors: | Chang Hung-tse Tung Shiu-tze Voong Sing-tuh |
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| Institution: | Department of Chemistry; Peking University |
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| Abstract: | Polytetramethylene glycol (PTMG) was prepared by the ring-opening polymerization of tetrahydrofuran using a binary catalyst of 21% fuming sulfuric acid and perchloric acid with the once-through yield about 60% and the ultimate yield around 90-98%. The molecular weight of PTMG was controlled in the range of 1000-4500 by varying the binary catalyst system.The recovered tetrahydrofuran can be reused for polymerization after distilling with a short column and drying by sodium hydroxide. |
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