A new method for the kinetic study of cyclization reaction during stabilization of polyacrylonitrile fibers
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A new method for the kinetic study of cyclization reaction using the chemical shrinkage was described. The kinetic parameters derived by function fit were used to predict the rate constant at a given temperature and the feasibility of this method was verified by the Kissinger method. The results indicate that the method is feasible and the order of cyclization reaction is relevant to stabilization temperature with an activation energy of 159.11 kJ/mol.
KeywordsDifferential Scanning Calorimetry Shrinkage Itaconic Acid Cyclization Reaction Kissinger Method
This work was funded by a grant from the National Ministries and Commission Emphases Foundation of China.