| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an acrylonitrile-based polymer solution excellent in stability at the vicinity of room temperature, and to provide a method for producing a polyacrylonitrile-based precursor fiber for carbon fiber. Ž<P>SOLUTION: The acrylonitrile-based copolymer solution includes an acrylonitrile-based copolymer having a carboxy group of A equivalent per copolymer unit mass, amide-based solvent, and acetic acid, wherein the amount of acetic acid is 0.3A-3.0A mol/g. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
