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Effects of comonomer with carboxylic group on stabilization of high molecular weight polyacrylonitrile nanofibrous copolymers
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  • Journal title : Carbon letters
  • Volume 15, Issue 4,  2014, pp.290-294
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2014.15.4.290
 Title & Authors
Effects of comonomer with carboxylic group on stabilization of high molecular weight polyacrylonitrile nanofibrous copolymers
Lei, Danyun; Devarayan, Kesavan; Li, Xiang-Dan; Choi, Woong-Ki; Seo, Min-Kang; Kim, Byoung-Suhk;
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 Abstract
New precursors, poly(acrylonitrile-co-crotonic acid) (poly(AN-CA)) and poly(acrylonitrile-co-itaconic acid-co-crotonic acid) (poly(AN-IA-CA)) copolymers, for the preparation of carbon fibers, were explored in this study. The effects of comonomers with acidic groups, such as crotonic acid (CA) and/or itaconic acid (IA), on the stabilization of nanofibrous polyacrylonitrile (PAN) copolymers were studied. The extent of stabilization, evaluated by Fourier transform infrared spectroscopy, revealed that the CA comonomer could retard/control the stabilization rate of PAN, in contrast to the IA comonomer, which accelerated the stabilization process. Moreover, the synthesized PAN copolymers containing CA possessed higher Mv than those of the IA copolymers and also showed outstanding dimension stability of nanofibers during the stabilization, which may be a useful property for improving the dimensional stability of polymer composites during manufacturing.
 Keywords
carbon nanofibers;carbon precursor;electrospinning;polyacrylonitrile;
 Language
English
 Cited by
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