2011•China PlasticsRequires access

Study on Direct Esterification of Terephthalic Acid and 1,4-Cyclohexanedimethanol

Huang Guan-bao

Abstract

In this research,the effects of the molar ratio of TPA/CHDM and the mass ratio of catalyst on the esterification extent and reaction time were studied.Based on the systematic experiments,the esterification kinetics equation and activation energy were obtained.For comparison,the esterification of TPA and EG was also studied at the same conditions.It showed that the best recipes were TPA/CHDM=1∶1.6,and the content of catalyst was 0.035 %.It also found that the activation energy,reaction time of the reaction between TPA and CHDM was lower than those of TPA and EG,and the effect of temperature on the reaction between TPA and CHDM was also moderate.

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Available abstract

Key concepts: Terephthalic acid, Catalysis, Materials science, Activation energy, Molar ratio, Kinetics, Polymer chemistry, Organic chemistry