AROMATIC POLYSULFONE AND AROMATIC POLYSULFONE COMPOSITION

• Main Authors: ITO Kazuyuki, SHODA Yoshio
• Format: Patent
• Language: English; French; German
• Published: 01.05.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MEASURING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; TESTING; THEIR PREPARATION OR CHEMICAL WORKING-UP

An aromatic polysulfone including an aromatic polysulfone having at least one highly polar functional group at its terminal, wherein in the aromatic polysulfone, an area of a signal attributed to the aromatic polysulfone having a highly polar functional group with respect to a total area of all signals attributed to the aromatic polysulfone in a chromatogram obtained by measurement through a gel permeation chromatography method under the following conditions is 0.1% or more and 11% or less, [Conditions] Sample injection volume: 5 µL Column: "Shodex KF-803" manufactured by Showa Denko K.K. Column temperature: 40°C Eluent: N,N-dimethylformamide Eluent flow rate: 0.5 mL/min Detector: ultraviolet-visible spectrophotometer (UV) Detection wavelength: 277 nm.