没食子酸合成多酚型环氧树脂的研究

›› 2005, Vol. 25 ›› Issue (1): 33-36.

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STUDY ON SYNTHESIS OF POLYPHENOL TYPE EPOXY RESIN FROM GALLIC ACID

KONG Zhen-wu¹, HUANG Huan¹, YOU Zhi-liang², AN Xin-nan²

1. Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China;2. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China

Received:2004-08-12 Revised:1900-01-01 Online:2005-03-30 Published:2005-03-30

Abstract

Abstract: The polyphenol type epoxy resin was synthesized by reacting epichlorohydrin with gallic acid,which was obtained from hydrolysis of plant polyphenols,and its chemical structure was characterized by IR,¹H NMR and (¹³C NMR) spectra.The effects of material ratio and reaction time on ring-opening reaction,along with the effects of (reaction) temperature,reaction time,the dosage and concentration of sodium hydroxide on ring-closure reaction were (investigated) by chemical analysis and infrared spectrometry.According to the experiment results,the optimum reaction conditions were obtained as follows:1 mol gallic acid reacting with 20 mol epichlorohydrin at 100℃ for 6 h catalyzed by triethylbenzyl ammonium chloride,and then reacting with equivalent amount of solid alkali for 2 h at room (temperature).

Key words: gallic acid, polyphenol, epoxy resin

CLC Number:

TQ351.5

KONG Zhen-wu;HUANG Huan;YOU Zhi-liang;AN Xin-nan. STUDY ON SYNTHESIS OF POLYPHENOL TYPE EPOXY RESIN FROM GALLIC ACID[J]. , 2005, 25(1): 33-36.

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STUDY ON SYNTHESIS OF POLYPHENOL TYPE EPOXY RESIN FROM GALLIC ACID

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