| 第 51 卷第 1 期 |  | Vol. 51 No. 1 | | 2021 年 2 月 | Feb 2021 |
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所屬欄目：功能材料
高分子量甘油聚醚的合成研究 |
| 馬定連，金一豐，宿顏彬，王 敏，路伯庭
（浙江皇馬科技股份有限公司，浙江 紹興 312363） |
| 摘 要：采用兩步法合成甘油聚醚12000。以甘油、環(huán)氧丙烷和環(huán)氧乙烷為原料，優(yōu)選氫氧化銫為催化劑，合成了低聚物甘油聚醚900；再以氫氧化銫為催化劑、低聚物甘油聚醚900為反應原料與環(huán)氧丙烷和環(huán)氧乙烷反應合成窄分布、低不飽和度、高伯羥基含量的甘油聚醚12000�？疾炝舜呋瘎┓N類(lèi)及用量、反應溫度和EO封端量等因素對不飽和度、分子量分布、伯羥基含量的影響，優(yōu)化工藝為：第1步反應催化劑用量為第1步反應總物料質(zhì)量的2.0‰，反應溫度110 ℃；第2步反應以催化劑用量為第2步反應總物料質(zhì)量的2.5‰，反應溫度110 ℃，EO封端量8%，產(chǎn)品不飽和度為0.011 mmol·g-1，分子量分布系數為1.06，伯羥基含量為96.05%。 |
| 關(guān)鍵詞：甘油聚醚；環(huán)氧乙烷；環(huán)氧丙烷；氫氧化銫；伯羥基 |
| 中圖分類(lèi)號：TH3 文獻標識碼：A 文章編號：1009-9212（2021）01-0032-04 |
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| Synthesis of High Molecular Weight Glycerol Polyether |
| MA Ding-lian, JIN Yi-feng, SU Yan-bin, WANG Min, LU Bo-ting
( Zhejiang Huangma Technology Incorporation, Shaoxing 312363, China) |
| Abstract：Glycerol polyether 12000 was synthesized through a two-step process. Glycerin polyether 900 was synthesized from glycerol, propylene oxide and ethylene oxide with cesium hydroxide as catalyst. In the second step, glycerol polyether 12000 with narrow distribution, low unsaturation and high primary hydroxyl content was synthesized by reaction of oligomer glycerol polyether 900 with ethylene oxide and propylene oxide using cesium hydroxide as catalyst. The effects of catalyst type and dosage, reaction temperature and EO capping amount on unsaturation, molecular weight distribution coefficient and primary hydroxyl content were investigated. The optimized process was as follows: in the first step, the amount of catalyst was 2.0‰ of the total material mass in the first step, and the reaction temperature was 110 ℃; in the second step, the amount of catalyst was 2.5‰ of the total material mass in the second step, the reaction temperature was 110 ℃, and the end capping dosage of EO was 8%. the unsaturation of the product was 0.011 mmol·g-1, the molecular weight distribution coefficient was 1.06, and the content of primary hydroxyl group was 96.05%. |
| Key words：glycerin polyether; ethylene oxide; propylene oxide; cesium hydroxide; primary hydroxy |
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作者簡(jiǎn)介：馬定連（1979—），男，工程師，研究方向：表面活性劑（E-mail：madinglian@huangma.com）。
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聯(lián) 系 人：金一豐（E-mail：jinyifeng@huangma.com）。
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收稿日期：2020-12-16
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