ACRYLONITRILE-BASED POLYMER AND CARBON MATERIAL USING THE SAME

PROBLEM TO BE SOLVED: To provide an acrylonitrile-based polymer suitable for a raw material for a carbon material such as carbon fiber, and having stable thermal oxidation reactivity. SOLUTION: This acrylonitrile polymer has an absorbance ratio Da/(Da+Db) (wherein, Da is the absorbance of the absorp...

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Bibliographische Detailangaben
Hauptverfasser:	HAMADA MITSUO, KAKITA HIDETO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY COMPOSITIONS BASED THEREON COMPOUNDS THEREOF INORGANIC CHEMISTRY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an acrylonitrile-based polymer suitable for a raw material for a carbon material such as carbon fiber, and having stable thermal oxidation reactivity. SOLUTION: This acrylonitrile polymer has an absorbance ratio Da/(Da+Db) (wherein, Da is the absorbance of the absorption caused by the carbon-oxygen double bond of a carboxy group in an infrared absorption spectrum measured by a KBr tablet method; and Db is the absorbance of the absorption caused by the carbon-nitrogen triple bond of a cyano group) regulated so as to be 0.01-0.1, and the inverse number 1/tp of an exothermic peak appearance time tp (min) in an isothermal exothermic curve measured by a heat flux-type differential scanning calorimeter in an air flow of 100 ml/min at 230 deg.C, regulated so as to be 0.03-0.35.