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Priority to KR1019940011992ApriorityCriticalpatent/KR950032288A/en
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Polysaccharides And Polysaccharide Derivatives
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Abstract
본 발명은 셀룰로오스를 플루오로아세틸화 반응시켜 셀룰로오스의 글루코스 단위에 존재하는 히드록실기를 트리플루오로아세테이트기로 전부 치환시키고, 이를 가수분해시켜 히드록실기와 트리플루아세테이트기가 혼재하는 셀룰로오스 트리플루오로아세테이트 합성에 관한 것이다. 이 셀룰로오스 트리플루오로아세테이트 수지는 난연성 섬유 또는 생체적합성 물질에 이용될 수 있다.The present invention is a cellulose trifluoroacetate in which hydroxyacetylation reaction of cellulose replaces all of the hydroxyl groups present in the glucose unit of cellulose with trifluoroacetate groups, and hydrolyzes these to mix hydroxyl and trifluoroacetate groups. It is about synthesis. This cellulose trifluoroacetate resin can be used for flame retardant fibers or biocompatible materials.
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (2)
셀룰로오스에 무수삼불화초산 및 삼불화초산 또는 삼불화초산과 이염화메탄 혼합용매를 첨가하여 셀룰로오스 트리플루오로아세테이트를 합성하는 것을 특징으로 하는 셀룰로오스 全 트리풀루오로아세테이트의 합성 방법.A method for synthesizing cellulose trifluoroacetate, characterized in that cellulose trifluoroacetate is synthesized by adding trichloroacetic anhydride and trifluoroacetic acid or trichloroacetic acid and a mixed solvent of dichloromethane.합성된 셀룰로오스 트리플루오로아세테이트를 가성소오다 수용액으로 가수분해하여 플루오로아세테이트의 치환도를 변화시켜 셀룰로오스의 글루코스 단위에 히드록실기와 트리플루오로 아세테이트기가 혼재하는 셀룰로오스 부분 트리플푸오로아세테이트의 제조 방법.A method for producing cellulose partial triplefuroacetate in which hydroxyl and trifluoro acetate groups are mixed in the glucose unit of cellulose by hydrolysis of the synthesized cellulose trifluoroacetate with an aqueous solution of caustic soda. .※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
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