HEAT-RESISTANT POLYCARBONATE BLOCK COPOLYMER BY SOLID-STATE POLYMERIZATION

Disclosed is a high heat-resistant polycarbonate block copolymer having improved thermal stability, while maintaining conventional polycarbonate properties. The high heat-resistant polycarbonate block copolymer comprises: (a) an amorphous polycarbonate prepolymer including a monomer represented by c...

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Bibliographische Detailangaben
Hauptverfasser:	KANG, SO YOUNG, PARK, KWAN HWI, MIN, JOON KEUN, HWANG, YONG TAEK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is a high heat-resistant polycarbonate block copolymer having improved thermal stability, while maintaining conventional polycarbonate properties. The high heat-resistant polycarbonate block copolymer comprises: (a) an amorphous polycarbonate prepolymer including a monomer represented by chemical formula 1 and a repetitive unit represented by chemical formula 2 by polymerizing an aryl carbonate; and (b) an amorphous high heat-resistant polycarbonate prepolymer including a monomer represented by chemical formula 3 and a repetitive unit represented by chemical formula 4 by polymerizing the aryl carbonate. 기존의 폴리카보네이트 특성을 유지하면서, 향상된 열적 안정성을 갖는 고내열 폴리카보네이트 블록 공중합체가 개시된다. 본 발명은 (a) 화학식 1로 표현되는 단량체와 아릴 카보네이트가 중합되어 화학식 2로 표현되는 반복단위체를 포함하는 비결정성 폴리카보네이트 프리폴리머; 및 (b) 화학식 3으로 표현되는 단량체와 아릴 카보네이트가 중합되어 화학식 4로 표현되는 반복단위체를 포함하는 비결정성 고내열 폴리카보네이트 프리폴리머;로 구성된 고내열 폴리카보네이트 블록 공중합체를 제공한다.