Theoretical study on the grafting reaction of maleimide to polyethylene in the UV radiation cross-linking process

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Abstract

Theoretical investigation of the reaction of graft maleimide to polyethylene in the UV radiation cross-linking process is accomplished at the B3LYP/6-311+G(d,p) level for high-voltage cable insulation materials. The reaction potential energy surface of the nine reaction channels is identified. The results show that the N,N'-ethylenedimaleimide can connect two 4-methylheptane molecules and act as the cross-linking agent. The calculated reaction potential barrier of forming 4-methylheptane radical by maleimide is higher than that of maleic anhydride. The study is expected to provide a basis for optimizing the UV radiation cross-linking polyethylene process and development more than 500 kV high-voltage cable insulation materials in practical applications.

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Zhang, H., Shang, Y., Zhao, H., Li, C., Wang, X., Han, B., & Li, Z. (2018). Theoretical study on the grafting reaction of maleimide to polyethylene in the UV radiation cross-linking process. Polymers, 10(9). https://doi.org/10.3390/POLYM10091044

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