Tuning Molecular Composition for Better Cross-section Homogeneity of Thermal Oxidative Stabilized Polyacrylonitrile for Carbon Materials 


Vol. 23,  No. 6, pp. 1515-1524, Jun.  2022
10.1007/s12221-022-3176-6


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  Abstract

A strategy to improve the cross-section homogeneity of thermal oxidative stabilized polyacrylonitrile for carbon materials was provided in the present work. A kind of comonomer, dimethyl itaconate (DMI), which possesses two bulky side groups was introduced into poly(acrylonitrile-co-itaconic acid). The efficiency of DMI in improving the cross-section homogeneity of polyacrylonitrile films during thermal oxidative stabilization (TOS) processes and the properties of resulted PAN-based carbon materials were investigated in detail. It was found that DMI facilitated the formation of longer cyclic structures, higher oxygen content, more homogeneous cross-section fracture morphology and denser structure during TOS process. DMI was also benefit for easing heat release. The presence of DMI also facilitated a smaller ID/IG value of the carbonized PAN film and a bigger in-plane size of graphite crystals La.

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  Cite this article

[IEEE Style]

S. Liu, Y. Ge, B. Liu, Z. Fu, X. Yu, M. Zhang, H. Zhang, "Tuning Molecular Composition for Better Cross-section Homogeneity of Thermal Oxidative Stabilized Polyacrylonitrile for Carbon Materials," Fibers and Polymers, vol. 23, no. 6, pp. 1515-1524, 2022. DOI: 10.1007/s12221-022-3176-6.

[ACM Style]

Shiyu Liu, Yuan Ge, Baijun Liu, Zhongyu Fu, Xiaoyu Yu, Mingyao Zhang, and Huixuan Zhang. 2022. Tuning Molecular Composition for Better Cross-section Homogeneity of Thermal Oxidative Stabilized Polyacrylonitrile for Carbon Materials. Fibers and Polymers, 23, 6, (2022), 1515-1524. DOI: 10.1007/s12221-022-3176-6.

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