Mathematical Modeling of Non-adiabatic Polymerization Fronts

Chem. J. Chinese Universities

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Mathematical Modeling of Non-adiabatic Polymerization Fronts

LU Guo-Dong, YAN Qing-Zhi*, GE Chang-Chun

Laboratory of Special Ceramics and Powder Metallurgy, University of Science and Technology Beijing, Beijing 100083, China

Received:2006-12-08 Revised:1900-01-01 Online:2007-08-10 Published:2007-08-10
Contact: YAN Qing-Zhi

Abstract

Abstract: A mathematical model for simulating the front propagation process in a non-adiabatic system, including the effect of reactor size on propagating front, was developed. From the model, the expressions for the temperature at front and the front propagation velocity were derived. The model reliability was supported in comparison of its predictions, in terms of propagating velocity of the starch-grafting-acrylic acid propagation front, with the measured data under various conditions such as initiator concentration, initial temperature, and tube size when the formation of bubbles due to solvent evaporation was absent. On the other hand, the deviation of the theoretical values from the experimental data occurred when a large number of bubbles were formed during the reaction.

Key words: Non-adiabatic system, Polymerization front, Mathematical simulation, Reactor size

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LU Guo-Dong, YAN Qing-Zhi*, GE Chang-Chun. Mathematical Modeling of Non-adiabatic Polymerization Fronts[J]. Chem. J. Chinese Universities, doi: .

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Mathematical Modeling of Non-adiabatic Polymerization Fronts

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