| 刘亚兰 雷忠利 赵俊超.聚乙二醇丙烯酸酯的合成与表征[J].,2006,6(5):41-43 |
| 聚乙二醇丙烯酸酯的合成与表征 |
| Synthesis and Characterization of Polyethylene Glycol Acrylate |
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| DOI： |
| 中文关键词: 聚乙二醇丙烯酸酯 正交实验 合成 表征 |
| 英文关键词: Polyethylene glycol acrylate Orthogonal design Synthesis Characterization |
| 基金项目:陕西省科技计划资助项目( 2004K07- G14) |
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| 中文摘要: |
| 以聚乙二醇- 400( PEG400) 与丙烯酸直接缩合反应, 在不加有毒带水剂的条件下合成了丙烯酸聚乙二醇酯( PEGA) 。
通过正交实验确定酯化反应的最佳条件: 丙烯酸/ PEG400 的摩尔比为2. 0: 1. 0, 反应温度是110 ?? , 阻聚剂对苯二酚为0. 4%( 以醇
酸总质量计) , 反应时间为6 小时, 催化剂对甲苯磺酸为0. 8% ( 以醇酸总质量计) , 产率为76. 7%。产品结构经IR 和1HNMR 表
征, 证明是所需的产物。 |
| 英文摘要: |
| Polyethylene glycol acrylate ( PEGA) was synthesized by condensation of PEG( 400) and acrylic acid without water- car??
rying reagent. The optimal condition of esterification was studied by the orthogonal design that the molar rate of acrylic acid to PEG was 2. 0: 1. 0,
the reaction temperature was 110?? , the reaction time is 6h, the amount of hydroquinone and p- methy benzene sulfonic acid was 0. 4% and 0.
8%, respectively ( according to the mass of PEG and acrylic acid) . The structure of the PEGA was characterized by FTIR, and 1HNMR. . The
ester yield reached 81% according to 1HNMR. |
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