Reaction Kinetics in Polyesterification of AA/HPHP and AA/NPG

Abstract

Abstract: A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely,and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications,the reaction order was 2.5 at a low temperature,while 3.0 at a high temperature. Moreover,if the effect of the removal of condensation water was neglected,the kinetic parameter would have more deviation. For polyesterifications of AA/HPHP and AA/NPG,the relative deviation of activation energy was 21.51%,11.33%,respectively. The relative deviation of frequency factor was 97.4%,87.96%,respectively.

Key words: Polyesterification, Kinetics, Reaction order, Adipic acid

CLC Number:

O633.14

TrendMD:

QIAO Qian, ZHANG Wei-Lu, ZHANG Dong, LIU Chun-Yan, TIAN Yi-Guang, ZHAO Ya-Juan . Reaction Kinetics in Polyesterification of AA/HPHP and AA/NPG[J]. Chem. J. Chinese Universities, 2004, 25(8): 1545.

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Reaction Kinetics in Polyesterification of AA/HPHP and AA/NPG

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