Influence of oxidative atmosphere of the electron beam irradiation on cyclization of PAN-based fibers
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon Letters / 16권 / 3호
ㆍ저자명 : Hye Kyoung Shin, Mira Park, Hak-Yong Kim, Soo-Jin Park
ㆍ저자명 : Hye Kyoung Shin, Mira Park, Hak-Yong Kim, Soo-Jin Park
목차
1. Introduction2. Experimental
3. Results and Discussion
References
한국어 초록
In order to study the impact of atmosphere during electron beam irradiation (EBI) of polyacrylonitrile(PAN) precursor fibers, the latter were stabilized by EBI in both air and oxygenatmospheres. Gel-fraction determination indicated that EBI-stabilization under an oxygenatmosphere leads to an enhanced cyclization in the PAN fibers. In the Fourier-transform infraredspectroscopy analysis, the PAN fibers stabilized by EBI under an oxygen atmosphereexhibited a greater decrease in the peak intensity at 2244 cm-1 (C≡N vibration) and a greaterincrease in the peak intensity at 1628 cm-1 (C=N absorption) than the corresponding PANfibers stabilized under an air atmosphere. From the X-ray diffraction analysis it was foundthat oxygen uptake in PAN fibers leads to an increase in the amorphous region, produced bycyclization.영어 초록
In order to study the impact of atmosphere during electron beam irradiation (EBI) of polyacrylonitrile(PAN) precursor fibers, the latter were stabilized by EBI in both air and oxygen
atmospheres. Gel-fraction determination indicated that EBI-stabilization under an oxygen
atmosphere leads to an enhanced cyclization in the PAN fibers. In the Fourier-transform infrared
spectroscopy analysis, the PAN fibers stabilized by EBI under an oxygen atmosphere
exhibited a greater decrease in the peak intensity at 2244 cm-1 (C≡N vibration) and a greater
increase in the peak intensity at 1628 cm-1 (C=N absorption) than the corresponding PAN
fibers stabilized under an air atmosphere. From the X-ray diffraction analysis it was found
that oxygen uptake in PAN fibers leads to an increase in the amorphous region, produced by
cyclization.
참고 자료
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