4Ko T H, Chen C Y. Raman spectroscopic study of the microstructure of carbon films developed from cobalt chloride-modified polyacrylonitrile[J]. J. Appl. Polym. Sci., 1999, 71: 2219-2225.
5Wang Y, Serrano S, Santiago-Avilees J J. Raman characterization of carbon nanofibers prepared using electrospinning[J].Synthetic Metals, 2003 (138): 423-427.
6Sokot M, Grobelny J, Turska E. Investigation of structural changes of polyacrylonitrile on swelling, wide-angle X-ray scattering study[J]. Polymer, 1987, 28: 843-846.
7Martin-Gullon I, Andtews R, Jagtoyen M, et al., PAN-based activated carbon fiber composites for sulfur dioxide conversion: influence of fiber activation method[J]. Fuel, 2001, 80: 969-977.
8Sen K, Bahrami S H, Bajaj P. High-performance Acrylic Fibers[J]. J M S-Rev Macromol Chem Phys,1996,36(1) : 1-76.
9Gupta A K, Paliwal D K, Bajaj P. Acrylic Precursors for Carbon Fibers [J]. J M S-Rev Macromol Chem Phys, 1991,31(1) : 1-89.
