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Published
: 2022-09-18
Thermal decomposition of 2,2 '-azobis[2-methyl-omega-hydroxy-oligo(oxyethylene)propionate] in the acrylonitrile/N, N-dimethylformamide system
Abstract
The thermal decomposition (333 K) of initiator 2,2'-azobis[2- ethyl-omega-hydroxyoligo(oxyethylene)propionate] [AIB-OE(400)] in N,N-dimethylformamide (DMF), in acrylonitrile (AN) nd in the mixture DMF/AN with the composition x(AN) = 0.52 and .87 (x(AN) - the mole fraction of acrylonitrile) was studied y volumetric method. A priority of the experimental etermination of the order of decomposition reaction in elation to the initiator was established. It has been found, hat the differential kinetic equations (7) and (9) can be used for this purpose. After the determination of the order equal to I for all solutions, the kinetic constant kd((I)) was determined from the integral equation (15). The differential equations (8) and (10) cannot be used for this purpose (kd(I) not equal kd(II)). The method used allows to avoid diversities of meaning, occurring in the literature, in determination of the reaction order and thermal decomposition rate constant for the azo-initiators.
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Szafko, J., Wiśniewska, E., & Pabin-Szafko, B. (2022). Thermal decomposition of 2,2 ’-azobis[2-methyl-omega-hydroxy-oligo(oxyethylene)propionate] in the acrylonitrile/N, N-dimethylformamide system. Polimery, 47(7-8), 563–566. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/2004
