CJCU

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (5): 741.

• Articles • Previous Articles     Next Articles

A Study on Temporarily Water-soluble Disperse Dyes Containing Carboxymethylsulfonyl Group ──The Kinetics of Decarboxylation of Intermediates and Dyes

WANG Mei1, Pan Xin2, LIU Jin-Xiang3, GAO Xiu-Ying3   

  1. 1. Dalian Institute of Synthesis Fibre, Dalian;
    2. Department of Fine Chemical Engineering, Dalin Uniuersity of Technology, Dalian, 116012;
    3. Dallian Institute of Chemical Physics, Academia Sinica, Dalian
  • Received:1993-06-01 Revised:1993-09-10 Online:1994-05-24 Published:1994-05-24

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Abstract: The kinetics of decarboxylation of intermediates and dyes containing carboxymethylsulfonyl group was studied by thermogravlmetry. The temperatures of decarboxylation of initial,final,Tmax and intensive decomposition were obtained through experiment. The Avrami-Erofeev equation of n=1,which is the same formation as the first order chemical reaction, was used to describe the decarboxylation process. The apparent kinetic parameters were obtained.There is compensating effect between activation energy and frequency factor for these different intermediates and dyes.

Key words: Disperse dye, Temporarily watersolubility, Carboxymethylsulfonyl group, Decarboxylation kinetics

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