| 杂多酸-乙酐催化四氢呋喃聚合的反应机理 |
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| 引用本文： | 尹红,陈志荣,杨政,吕德伟.杂多酸-乙酐催化四氢呋喃聚合的反应机理[J].化学反应工程与工艺,1999,15(3):288-294. |
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| 作者姓名： | 尹红 陈志荣 杨政 吕德伟 |
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| 作者单位： | 浙江大学化工系,浙江,杭州,310027 |
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| 摘 要： | 研究了体系中存在乙酐时，四氢呋喃在杂多酸催化下进行阳离子开环聚合的反应机理。结果表明，杂多酸—乙酐络合物有较高的引发活性，该反应在笼型结构（四氢呋喃与杂多酸络合形成）中的杂多酸表面进行，经历了四氢呋喃与杂多酸络合、乙酐与杂多酸络合引发、四氢呋喃开环聚合及链终止反应等阶段，建立了以笼型结构为中心的机理模型。
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| 关 键 词： | 杂多酸 笼型结构 四氢呋喃 聚四氢呋喃醚二醇 |
| 修稿时间： | 1998-03-31 |
A STUDY ON POLYMERIZATION MECHANISM OF TETRAHYDROFURAN WITH THE CATALYSIS OF HETEROPOLYACID ACETICANHYDRIDE |
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| YIN Hong,CHEN Zhi-rong,YANG Zheng,LU De-wei.A STUDY ON POLYMERIZATION MECHANISM OF TETRAHYDROFURAN WITH THE CATALYSIS OF HETEROPOLYACID ACETICANHYDRIDE[J].Chemical Reaction Engineering and Technology,1999,15(3):288-294. |
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| Authors: | YIN Hong CHEN Zhi-rong YANG Zheng LU De-wei |
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| Abstract: | Heteropolyacid aceticanhydride has high catalysis activity in the polym er ization oftetrahydrofuran. The polym erization m echanism w as investigated in this w ork.Itw as found from experim ents show ed that the polym erization process includes four stepsas follow ing:(1) Ligation of tetrahydrofuran and heteropolyacid.(2) Chain initiation:(3) Chain propagation:(4) Chain term ination: |
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| Keywords: | heteropoly acid tetrahydrofuran polytetrahydrofuran |
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