| 摘要 |
<p>Disclosed is a polyacrylonitrile polymer which comprises a polymer mainly composed of acrylonitrile and which satisfies at least one requirement selected from the requirements [a] to [d]: [a] the Z average molecular weight (Mz) as measured by a gel permeation chromatography method is 800,000 to 6,000,000, and the degree of polydispersion (Mz/Mw) is 3.0 to 10.0 (wherein Mw represents a weight average molecular weight); [b] the Z+1 average molecular weight (Mz+1) as measured by a GPC method is 3,000,000 to 10,000,000 and the degree of polydispersion (Mz+1/Mw) is 6.0 to 25.0; [c] the Mzm value as measured by a gel permeation chromatography method-a multiangle light scattering spectrophotometry method is 400,000 to 1,000,000 and the degree of polydispersion (Mzm/Mwm) is 3.0 to 10.0; and [d] the Z average gyration radius (Rz) as measured by a gel permeation chromatography method-a multiangle light scattering spectrophotometry method is 25 to 45 nm and the ratio of the Rz value to the weight average gyration radius (Rz/Rw) is 1.3 to 2.5.</p> |
