| 硅胶负载钨钼杂多酸催化合成聚缩季戊四醇乙二醛 |
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| 引用本文： | 段旭光,曾雷,周崇文,陈科.硅胶负载钨钼杂多酸催化合成聚缩季戊四醇乙二醛[J].吉林林学院学报,2009(3):210-213. |
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| 作者姓名： | 段旭光 曾雷 周崇文 陈科 |
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| 作者单位： | 湖南环境生物职业技术学院,湖南衡阳421005 |
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| 基金项目： | 湖南省教育厅科技项目资助（06D037）. |
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| 摘 要： | 以硅胶负载钨钼杂多酸为催化剂，乙二醛与季戊四醇为原料，合成了聚缩季戊四醇乙二醛，系统地研究了乙二醛与季戊四醇的摩尔比、催化剂用量、反应时间诸因素对收率的影响．结果表明：在n（醛）：n（季戊四醇）=1：1．8，催化剂的用量占反应物料总质量的1．5％，反应时间为2．5h条件下，聚缩季戊四醇乙二醛平均收率在67％．
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| 关 键 词： | 杂多酸 聚缩醛 硅胶 催化剂 |
Synthesis of Poly Glyoxapentaerythritol Acetal Catalyzed by Tungstemolybdenumic Acid Supported on Silica Gel |
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| Authors: | DUAN Xu-guang ZENG Lei ZHOU Cong-wen CHEN Ke |
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| Institution: | (Hunan Environment ＆ Biologic Ploytechnic College, Hengyang 421005, China ) |
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| Abstract: | Poly-glyoxapentaerythritol acetal was synthesized by using glyoxal and pentaerythritol as the materials, tungstemolybdenumic acid supported on silica gel as catalyst. Various factors affecting yield were studied such as mole-ratio of glyoxal and pentaerythritol, catalyst dose, reaction time. The results showed that yield of polyglyoxapentaerythritol acetal reaches 67% , which mole ratio of glyoxal and pentaerythritol is 1 ： 1. 8, dose of catalyst of total mass of material is 1.5% ,and reaction time is 2.5 h. |
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| Keywords: | Tungstemolybdenumic acid Polyacetal Silica gel Catalyst |
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