第 39 卷第 4 期 | ![](image2/wentou.gif) | Vol. 39 No. 4 | 2009 年 8 月 | Aug 2009 |
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所属栏目:有机合成原料
二乙醇胺开环环氧大豆油制备大豆多元醇及其性能表征 |
赵成山,杨丽庭,傅利玉,代春兰
(华南师范大学 化学与环境学院,广东 广州 510631) |
摘 要:以大豆油、冰乙酸和过氧化氢为原料,硫酸为催化剂,合成了不同环氧值的环氧大豆油。再由合成的环氧大豆油与二乙醇胺在四氟硼酸作催化剂的条件下,通过开环加成反应制备了羟基值分别为261 mgKOH/g、285 mgKOH/g、312 mgKOH/g、340 mgKOH/g的4种大豆多元醇。用滴定法测定多元醇羟值,用傅立叶变换红外光谱、差示扫描量热法、热重分析法对多元醇进行了分析和表征。结果表明4种多元醇的熔点和热稳定性都随多元醇羟值增大而增大。 |
关键词:环氧大豆油;二乙醇胺;大豆多元醇 |
中图分类号:O623.6 文献标识码:A 文章编号:1009-9212(2009)04- 0034-05 |
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Synthesis and Characterization of Soy-polyols by Ring Opening of ESO with Diethanolamine |
ZHAO Cheng-shan,YANG Li-ting,FU Li-yu,DAI Chun-lan
(School of Chemistry and Environment,South China Normal University,Guangzhou 510631,China) |
Abstract:In this paper,epoxidized soybean oil(ESO)with different oxirane content were synthesized by in-situ epoxidation of soybean oil,in the presence of glacial acetic acid,hydrogen peroxide,and sulfuric acid as a catalyst. Subsequently,four soy-polyols were synthesized by ring opening of ESO with diethanolamine and tetrafluoroborate as catalyst. OH value of the four polyols are 261 mgKOH/g,285 mgKOH/g,312 mgKOH/g,340 mgKOH/g,respectively. The synthesized polyols were characterized using FTIR,DSC,TG and the OH value of the polyols was determined by titration method. The result shown the melt points and thermal stabilities of the polyols increase with the increasing of OH value. |
Key words:ESO;diethanolamine;soy-polyol |
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基金项目:广东省自然科学基金资助项目(06025028)。
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作者简介:赵成山(1975-),男,湖北谷城人,硕士研究生,主要从事生物基高分子材料的合成与表征等方面的研究。(E-mail:zhaochengshan@126.com)
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联 系 人: 杨丽庭(1963-),男,教授,博士,主要从事高分子材料改性、生物降解高分子材料、聚合物结构与性能方面的研究。(E-mail:yanglt@scnu.edu.cn)
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收稿日期:2009-04-25
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