Page 112 - 精细化工2019年第9期

第 36 卷第 9 期 精 细 化 工 Vol.36, No.9
201 9 年 9 月 FINE CHEMICALS Sept. 2019

催化与分离提纯技术
钨基催化剂体系下甲醇开环环氧大豆油制备多元醇

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王迎春，蒋平平 ，章立鹏，郑付林，闻 月，李博为
（江南大学 化学与材料工程学院，生物质转化技术国际联合研究实验室，江苏 无锡 214122）

摘要：以环氧大豆油和甲醇为原料，通过开环加成制备植物油基多元醇。在自制的二氯二氧化钨（WO 2 Cl 2 ）作
催化剂、三氟甲磺酸银（AgOTf）作助催化剂的条件下，考察了催化剂用量、助催化剂用量、反应时间、温度
和醇油物质的量比等对环氧大豆油开环转化率的影响，并对产物的环氧值进行了测试。结果表明，当催化剂用
量为 3%（以甲醇和环氧大豆油总质量为基准，下同），三氟甲磺酸银用量为 4%，反应温度为 70 ℃，反应时间
1
为 8 h，醇油物质的量比为 28∶1 时，环氧大豆油的开环转化率较高，为 89.13%。对开环产物进行了 FTIR、 HNMR、
TG 以及流变性分析。通过热重分析得出，多元醇的分解温度（334 ℃）比环氧大豆油的分解温度（305 ℃）高。
流变性分析得出，随着温度的升高，环氧大豆油和多元醇的黏度逐渐下降。在温度较低时，大豆油多元醇的黏
度明显低于环氧大豆油的黏度。
关键词：环氧大豆油；多元醇；钨基催化剂；开环反应；催化技术
中图分类号：TQ223.16 文献标识码：A 文章编号：1003-5214 (2019) 09-1840-05

Preparation of Polyols from Methanol Ring-Open Epoxidized Soybean
Oil in Tungsten Catalyst System

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WANG Ying-chun, JIANG Ping-ping , ZHANG Li-peng, ZHENG Fu-lin, WEN Yue, LI Bo-wei
（International Joint Research Laboratory for Biomass Conversion Technology, School of Chemical and Material
Engineering, Jiangnan University, Wuxi 214122, Jiangsu,China）

Abstract: Vegetable oil-based polyols were prepared from epoxidized soybean oil and methanol by
ring-opening reaction. The effects of catalyst dosage, cocatalyst dosage, reaction time, reaction temperature
and molar ratio of alcohol to oil on the ring-opening conversion of epoxidized soybean oil were studied
under the conditions of tungsten dioxide dichloride (WO 2Cl 2) as catalyst and silver trifluoromethane
sulfonate (AgOTf) as cocatalyst. And the epoxy values of the products were tested.Under the conditions of
catalyst dosage 3% (based on the total mass of methanol and epoxidized soybean oil, the same below),
AgOTf dosage 4%, reaction temperature 70 ℃, reaction time 8 h, and the molar ratio of alcohol to oil 28∶
1, the ring-opening conversion of epoxidized soybean oil was up to 89.13%. The ring-opening product was
1
characterized by IR, HNMR, TG and rheological analysis. The TG analysis revealed that the
decomposition temperature of polyols was 334 ℃, higher than that of epoxidized soybean oil (305 ℃).
The rheological analysis showed that the viscosity of epoxidized soybean oil and polyols decreased with the
increase of temperature. At low temperature, the viscosity of epoxidized soybean oil polyols was
significantly lower than that of epoxidized soybean oil.
Key words: epoxidized soybean oil; polyols; tungsten-based catalyst; ring-opening reaction; catalysis
technology

矿物油是石油化工产品之一，石油化工产品作 随着石油消耗量的增加，世界石油价格持续高涨，
为重要的化工原料在化工生产中有着广泛的应用， 石油资源面临枯竭，因此，廉价易得、可再生的生

收稿日期：2018-07-19; 定用日期：2019-04-12; DOI: 10.13550/j.jxhg.20180535
基金项目：中央高校基本科研业务费专项资金资助（JUSRP51623A）
作者简介：王迎春（1993—），女，硕士生。联系人：蒋平平（1957—），男，教授，博士生导师，E-mail：ppjiang@jiangnan.edu.cn。