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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 SO_3 H-functionalized Ionic Liquids

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文摘 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CF_3SO_3~-的磺酸功能化离子液体在120℃的低温下催化聚合反应所得聚酯M_w可达10 159,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.
其他语种文摘 Employing SO_3H-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 M_w above 1.0×10~4 and yield above 82% could be obtained when catalyzed by 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.
来源 分子催化 ,2012,26(4):293-299 【核心库】
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
地址

中国科学院兰州化学物理研究所, 中国科学院羰基合成与选择氧化国家重点实验室, 甘肃, 兰州, 730000

语种 中文
ISSN 1001-3555
学科 化学;化学工业
文献收藏号 CSCD:4624312

参考文献 共 21 共2页

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引证文献 5

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被引 7

2 何志成 磺酸功能化双核离子液体催化合成双酚F 分子催化,2014,28(6):535-543
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