氢化松香聚乙二醇柠檬酸酯的微波辅助合成

›› 2007, Vol. 41 ›› Issue (4): 17-21.

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Microwave Assisted Synthesis of Hydrogenated Rosin-polyethylene Glycol-citric Acid Ester

WEI Rui-song^1,2, DUAN Wen-gui¹, CEN Bo¹, LIANG Jian-lin¹

1. College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;2. Department of Chemistry and Life Science, Hechi College, Yizhou 546300, China

Received:2006-08-15 Revised:1900-01-01 Online:2007-07-30 Published:2007-07-30

Abstract

Abstract: Under microwave irradiation, hydrogenated rosin-polyethylene glycol ester was synthesized as an intermediate by esterification of hydrogenated rosin and polyethylene glycol, and then the target product hydrogenated rosin-polyethylene glycol-citric acid ester was prepared by further esterification of the intermediate and citric acid. The optimal synthetic conditions of the intermediate and target product were investigated. The optimal synthetic conditions of the intermediate were as follows:reaction time 90min,reaction temperature 240℃,the molar ratio of hydrogenated rosin to polyethylene glycol 1:1.6. The optimal synthetic conditions of target product were as follows:reaction time 60min,reaction temperature 150℃,microwave power 500 W. The reaction time of microwave irradiation is shorter than that of common heat method. The intermediate and target product were analyzed and characterized by IR spectroscopy. In addition, their major surface properties were determined. The results showed that both the intermediate and the target product were novel and excellent nonionic surfactants.

Key words: hydrogenated rosin-polyethylene glycol-citric acid ester, microwave irradiation, surfactant, synthesis

CLC Number:

TQ351.471

WEI Rui-song;DUAN Wen-gui;CEN Bo;LIANG Jian-lin. Microwave Assisted Synthesis of Hydrogenated Rosin-polyethylene Glycol-citric Acid Ester[J]. , 2007, 41(4): 17-21.

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Microwave Assisted Synthesis of Hydrogenated Rosin-polyethylene Glycol-citric Acid Ester

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