| 第 50 卷第 3 期 |  | Vol. 50 No. 3 | | 2020 年 6 月 | Jun 2020 |
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所屬欄目：功能材料
草酸亞錫催化合成雙季戊四醇六正戊酸酯 |
| 萬(wàn)慶梅1，王勝利2，劉志湘1
（1. 浙江皇馬科技股份有限公司，浙江 上虞 312363；2. 浙江綠科安化學(xué)有限公司，浙江 上虞 312359） |
| 摘 要：以草酸亞錫為催化劑，進(jìn)行雙季戊四醇和正戊酸的酯化反應，合成了雙季戊四醇六正戊酸酯，考察了催化劑用量、醇酸配比、反應溫度、反應時(shí)間等因素對酯化率的影響。確定了優(yōu)化合成條件：n（正戊酸）∶n（雙季戊四醇）=6.5∶1.0，催化劑用量為反應物總質(zhì)量的0.05%，210 ℃酯化反應7 h，酯化率超過(guò)99%，用紅外光譜、氣相色譜和核磁對反應產(chǎn)物進(jìn)行了表征。 |
| 關(guān)鍵詞：草酸亞錫；雙季戊四醇；酯化反應；正戊酸 |
| 中圖分類(lèi)號：TE666 文獻標識碼：A 文章編號：1009-9212（2020）03-0062-03 |
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| Synthesis of Dipentaerythritol Ester Catalyzed by Stannous Oxalate |
| WAN Qing-mei1, WANG Sheng-li2, LIU Zhi-xiang1
(1. Zhejiang Huangma Technology Co.,Ltd., Shangyu 312363, China; 2. Zhejiang Lvkean Chemical Co.,Ltd., Shangyu 312359, China) |
| Abstract：Using stannous oxalate as catalyst, dipentaerythritol and valeric acid were esterified to obtain dipentaerythritol hexaester. Effects of factors including the dosage of catalyst, molar ratio of valaric acid to dipentaerythritol, reaction temperature,and reaction time on the results of esterification were investigated. The optimal conditions were obtained asthe folloeings: the dosage of the catalyst was of 0.50%(w/w) of total mass of the reactants; n( valeric acid)∶n(dipentaerythritol) was of 6.5∶1.0; reaction temperature was of 210 ℃ and reaction time was of 7 h. The yield of esterification reached more than 99%. The reaction products were characterized by FTIR, GC and 13CNMR. |
| Key words：stannous oxalate; dipentaerythritol; esterification; valeric acid |
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作者簡(jiǎn)介：萬(wàn)慶梅（1979-），女，山東德州人，高級工程師，碩士研究生，研究方向：表面活性劑的研究與開(kāi)發(fā)（E-mail：wanqingmei@huangma.com）。
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收稿日期：2020-04-16
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