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Polymers 2018, 10(9), 1044; https://doi.org/10.3390/polym10091044

Theoretical Study on the Grafting Reaction of Maleimide to Polyethylene in the UV Radiation Cross-Linking Process

1
Key Laboratory of Engineering Dielectrics and Its Application of Ministry of Education & College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China
2
Shanghai Qifan Cable Co., Ltd., Shanghai 200008, China
3
Key Laboratory of Cluster Science of Ministry of Education & School of Chemistry, Beijing Institute of Technology, Beijing 100081, China
*
Authors to whom correspondence should be addressed.
Received: 3 August 2018 / Revised: 6 September 2018 / Accepted: 6 September 2018 / Published: 19 September 2018
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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. View Full-Text
Keywords: UV radiation cross-linking polyethylene; graft; maleimide; transition UV radiation cross-linking polyethylene; graft; maleimide; transition
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhang, H.; Shang, Y.; Zhao, H.; Li, C.; Wang, X.; Han, B.; Li, Z. Theoretical Study on the Grafting Reaction of Maleimide to Polyethylene in the UV Radiation Cross-Linking Process. Polymers 2018, 10, 1044.

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