| 徐国荣.磺酸功能化离子液体催化3-羟基丙酸甲酯酯交换聚合反应[J].分子催化,2012,(4):293-299 |
| 磺酸功能化离子液体催化3-羟基丙酸甲酯酯交换聚合反应 |
| Ester Exchange Polymerization of 3-Hydroxyl Propionic Acid Methyl Ester Catalyzed by SO3H-functionalized Ionic Liquids |
| 投稿时间：2012-05-15 修订日期：2012-06-15 |
| DOI： |
| 中文关键词: 磺酸功能化离子液体,3-羟基丙酸甲酯,聚3-羟基丙酸酯,酯交换聚合 |
| 英文关键词:SO3H-functionalized ionic liquids,3-hydroxyl propionic acid methyl ester, Poly[3-hydroxypropionic acid],Ester exchange polymerization |
| 基金项目: |
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| 摘要点击次数: 1729 |
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| 中文摘要: |
| 以磺酸功能化咪唑离子液体为催化剂，以3-羟基丙酸甲酯为原料，采用自身酯交换法合成了具有生物可降解性能的聚羟基脂肪酸酯。系统考察了离子液体种类、反应温度以及聚合反应时间对反应性能的影响，同时采用红外、核磁、热分析等手段对产物进行表征。研究结果表明：阴离子为CF3SO3-的磺酸功能化离子液体在120 oC的低温下催化聚合反应所得聚酯Mw可达10159，收率82.1%；通过水洗方法可有效去除产物中的离子液体催化剂，从而避免催化剂污染产物。 |
| 英文摘要: |
| Employing SO3H-functionalized ionic liquids as catalysts, the biodegradable poly[3-
-hydroxypropionic acid](PHP) was obtained by ester exchange polymerization of 3-Hydroxyl propionic acid methyl ester(3-HPM). The effects of various ionic liquids, reaction temperature and reaction time on the polymerization performance were discussed in detail. Meanwhile, the FTIR, NMR and TG-DSC were applied to characterize the products. The PHP with Mw above 1.0?04 and yield above 82% could be obtained when catalyzed by [BsMIm][OTf] under the optimal reaction conditions. In addition, the catalyst in the polymer could be removed completely after washing with water, efficiently avoiding the pollution of the product. |
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