POLYACRYLONITRILE (PAN) POLYMERS WITH LOW POLYDISPERSITY INDEX (PDI) AND CARBON FIBERS MADE THEREFROM

좁은 분자량 분포를 갖는 폴리아크릴로니트릴(PAN) 폴리머를 합성하는 방법이 기술된다. 바람직한 PAN 폴리머는 약 2 이하의 PDI(Mw/Mn)를 갖는다. 이러한 PAN 폴리머는 특별한 RAFT(가역적 첨가-분절화 사슬 전달(Reversible Addition-Fragmentation Chain Transfer)) 제제를 사용하여 제어된/리빙 라디칼 중합에 의해 합성된다. 또한, 낮은 PDI를 갖는 PAN 폴리머로부터 탄소 섬유를 제조하는 방법이 기술된다. A method for synthesizing polyacrylonitri...

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Bibliographische Detailangaben
Hauptverfasser:	HARMON BILLY D, THOMAS ALAN D, TANG LONGGUI
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	좁은 분자량 분포를 갖는 폴리아크릴로니트릴(PAN) 폴리머를 합성하는 방법이 기술된다. 바람직한 PAN 폴리머는 약 2 이하의 PDI(Mw/Mn)를 갖는다. 이러한 PAN 폴리머는 특별한 RAFT(가역적 첨가-분절화 사슬 전달(Reversible Addition-Fragmentation Chain Transfer)) 제제를 사용하여 제어된/리빙 라디칼 중합에 의해 합성된다. 또한, 낮은 PDI를 갖는 PAN 폴리머로부터 탄소 섬유를 제조하는 방법이 기술된다. A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.