A Monte Carlo simulation method of acrylonitrile/itaconic acid copolymerization is established. Firstly it is used for the calculation of copolymer composition under different pH values when the monomer reactivity changes. The results are consistent with experiment
which proves the accuracy of the model. On this basis
the change law of acrylonitrile copolymer chain structure is analyzed theoretically
which points out the heterogeneity of copolymer composition and sequence structure in traditional polymerization process. According to the simulation results
a feasible strategy is proposed to control the composition and sequence structure of copolymer. It shows that the instantaneous composition and sequence structure of copolymer can be effectively controlled by feeding the ITA monomer at different stages of polymerization. This strategy can improve the uniformity of copolymer composition and sequence structure
which contributes to the improvement of carbon fiber property.
关键词
共聚序列结构Monte Carlo模拟
Keywords
CopolymerizationSequence structureMonte Carlo simulation