1 Results Rosin is a sort of important renewable resources,which is a foremost product of our country forestry. It has very important meaning to modify the rosin based on its molecule structure and active group, to de...1 Results Rosin is a sort of important renewable resources,which is a foremost product of our country forestry. It has very important meaning to modify the rosin based on its molecule structure and active group, to develop some deep processing products, and to endure with rosin new characteristic[1]. This work uses the rosin and acrylic acid to form rosin adduct, and then reacted with 2-hydroxyethyl methacrylate (HEMA) to form ester under the different condition. The effect of different ratios with the ...展开更多
在微波辐射下,先将歧化松香与聚乙二醇进行酯化反应,合成中间体歧化松香聚乙二醇酯,再将中间体与苹果酸进行酯化反应,合成目标产物歧化松香聚乙二醇苹果酸酯,研究了中间体和目标产物的合成条件。结果表明:①中间体合成的最佳条件为:反...在微波辐射下,先将歧化松香与聚乙二醇进行酯化反应,合成中间体歧化松香聚乙二醇酯,再将中间体与苹果酸进行酯化反应,合成目标产物歧化松香聚乙二醇苹果酸酯,研究了中间体和目标产物的合成条件。结果表明:①中间体合成的最佳条件为:反应时间90 m in,反应温度240℃,歧化松香与聚乙二醇的摩尔比为1∶1.6;②目标产物合成的最佳条件为:反应时间60 m in,反应温度140℃,微波功率800 W。利用IR、UV等测试技术对中间体及目标产物进行了结构表征,并测定了它们的主要表面性能。结果表明,中间体和目标产物均为性能优良的新型非离子表面活性剂。展开更多
文摘1 Results Rosin is a sort of important renewable resources,which is a foremost product of our country forestry. It has very important meaning to modify the rosin based on its molecule structure and active group, to develop some deep processing products, and to endure with rosin new characteristic[1]. This work uses the rosin and acrylic acid to form rosin adduct, and then reacted with 2-hydroxyethyl methacrylate (HEMA) to form ester under the different condition. The effect of different ratios with the ...
文摘在微波辐射下,先将歧化松香与聚乙二醇进行酯化反应,合成中间体歧化松香聚乙二醇酯,再将中间体与苹果酸进行酯化反应,合成目标产物歧化松香聚乙二醇苹果酸酯,研究了中间体和目标产物的合成条件。结果表明:①中间体合成的最佳条件为:反应时间90 m in,反应温度240℃,歧化松香与聚乙二醇的摩尔比为1∶1.6;②目标产物合成的最佳条件为:反应时间60 m in,反应温度140℃,微波功率800 W。利用IR、UV等测试技术对中间体及目标产物进行了结构表征,并测定了它们的主要表面性能。结果表明,中间体和目标产物均为性能优良的新型非离子表面活性剂。
基金Supported by the Nature Science Foundation of Anhui Province (03046303)the Natural Science Foundation of Education Administration of Anhui Province (2006kj117B)