supported by the National Natural Science Foundation of China(Nos.51073011 and 50673011); the,National High Technology Research and Development Program of China("863 Program",No.2006AA06Z382);the National Basic Research Program of China("973 Program",No.2006CB605304)
Orientation of copolymer polyacrylonitrile (PAN) chains during their deformation prior to stabilization and the further effect on the stabilization were investigated in detail. Results reveal that the orientation of...