KR960022669A - Method for preparing biodegradable copolyester - Google Patents

Method for preparing biodegradable copolyester Download PDF

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Publication number
KR960022669A
KR960022669A KR1019940036638A KR19940036638A KR960022669A KR 960022669 A KR960022669 A KR 960022669A KR 1019940036638 A KR1019940036638 A KR 1019940036638A KR 19940036638 A KR19940036638 A KR 19940036638A KR 960022669 A KR960022669 A KR 960022669A
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South Korea
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biodegradable
producing
aliphatic polyester
polyester
aliphatic
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KR1019940036638A
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Korean (ko)
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KR0158428B1 (en
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우성일
장호남
전해상
김봉오
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심상철
한국과학기술원
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Priority to KR1019940036638A priority Critical patent/KR0158428B1/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/91—Polymers modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00—Preparation of oxygen-containing organic compounds
    • C12P7/62—Carboxylic acid esters
    • C12P7/625—Polyesters of hydroxy carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2230/00—Compositions for preparing biodegradable polymers

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

본 발명은 생분해성 공중합 폴리에스터의 제조방법에 관한 것이다. 좀 더 구체적으로, 본 발명은 미생물 발효에 의해 합성된 지방족 폴리에스터를 화학적으로 합성된 지방족 폴리에스터와 에스테르 교환반응시켜 다양한 구조와 물성을 지닌 생분해성 공중합 폴리에스터의 제조방법에 관한 것이다. 본 발명의 생분해성 공중합 폴리에스터는 미생물합성 지방족 폴리에스터를 질소분위기와 용매 및 촉매의 존재하에서 화학합성 지방족 폴리에스터와 에스테르 교환반응시켜 제조되며, 본 발명에 의해 우수한 생분해성을 유지하면서도 다양한 분자구조와 물성을 지닌 생분해성 공중합 폴리에스터를 간단히 제조할 수 있다는 것이 확인되었다.The present invention relates to a process for the preparation of biodegradable copolymerized polyester. More specifically, the present invention relates to a method for producing a biodegradable copolymer polyester having various structures and properties by transesterification of the aliphatic polyester synthesized by microbial fermentation with the chemically synthesized aliphatic polyester. The biodegradable copolyester of the present invention is prepared by transesterification of a biosynthetic aliphatic polyester with a chemical synthetic aliphatic polyester in the presence of a nitrogen atmosphere, a solvent and a catalyst, and various molecular structures while maintaining excellent biodegradability according to the present invention. It was confirmed that biodegradable copolyester having physical and physical properties can be easily produced.

Description

생분해성 공중합 폴리에스터의 제조방법Method for preparing biodegradable copolyester

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 일 실시예에 의해 제조된 공중합 폴리에스터의 NMR 스펙트럼이다.1 is an NMR spectrum of a copolyester prepared by one embodiment of the present invention.

Claims (8)

미생물합성 지방족 폴리에스터를 질소분위기와 용매 및 촉매의 존재하에서 화학합성 지방족 폴리에스터와 에스테르 교환반응시키는 공정을 포함하는 생분해성 공중합 폴리에스터의 제조방법.A method for producing a biodegradable copolymerized polyester comprising the step of transesterifying a microbial synthetic aliphatic polyester with a chemical synthetic aliphatic polyester in the presence of a nitrogen atmosphere, a solvent and a catalyst. 제1항에 있어서, 미생물합성 지방족 폴리에스터로는 하기 일반식 (I)로 표시되는 폴리히드록시알카노에이트를 단독 또는 혼합사용하는 것을 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method for producing a biodegradable copolymerized polyester according to claim 1, wherein as the microbial synthetic aliphatic polyester, polyhydroxyalkanoate represented by the following general formula (I) is used alone or in combination. 상기 식에서, R은 수소 또는 탄소수 1 내지 9개의 알킬기이다.In the above formula, R is hydrogen or an alkyl group having 1 to 9 carbon atoms. 제1항에 있어서, 미생물합성 지방족 폴리에스터로는 하기 일반식(II)로 표시되는 폴리히드록시알카노에이트를 사용하는 것을 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method for producing a biodegradable copolymerized polyester according to claim 1, wherein as the microbial synthetic aliphatic polyester, polyhydroxyalkanoate represented by the following general formula (II) is used. 상기 식에서, a, b 및 m은 1이상의 정수이다.Wherein a, b and m are integers of 1 or more. 제1항에 있어서, 화학합성 지방족 폴리에스터로는 환상 에스테르인 락톤의 개환중합에 의해 제조된 지방족 폴리에스터; 적어도 2개 이상의 카르복실기를 갖는 지방족 화합물 또는 그들의 저급 알킬에스터르 화합물을다가 알콜에 의해 에스테르화 또는 에스테르 교환반응시킨 후 축중합반응시켜 제조된 지방족 폴리에스터; 및, 락타이드나 글리콜라이드를 개환중합시켜 제조된 폴리에스터로부터 구성된 그룹으로부터 선택된 1종 이상을사용하는 것을 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method of claim 1, wherein the chemically synthesized aliphatic polyesters include aliphatic polyesters produced by ring-opening polymerization of lactones which are cyclic esters; Aliphatic polyesters prepared by esterification or transesterification of an aliphatic compound having at least two or more carboxyl groups or their lower alkyl ester compound with a polyalcohol followed by a polycondensation reaction; And at least one member selected from the group consisting of polyesters prepared by ring-opening polymerization of lactide or glycolide. 제4항에 있어서, 화학합성 지방족 폴리에스터로는 중량평균 분자량이 10,000 이상인 것을 사용하는 것을 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method for producing a biodegradable copolymerized polyester according to claim 4, wherein the chemically synthesized aliphatic polyester has a weight average molecular weight of 10,000 or more. 제1항에 있어서, 용매로서는 니트로벤젠 및 디메틸설포옥사이드로부터 선택된 1종 이상을 사용하는 것으로 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method for producing a biodegradable copolymerized polyester according to claim 1, wherein at least one selected from nitrobenzene and dimethylsulfooxide is used as the solvent. 제1항에 있어서, 촉매로서는 디부틸틴옥사이드, 틴클로라이드, 틴옥토에이트, 헥사부틸디스텐옥산, 트리부틸틴메톡시도 및 트리부틸틴클로라이드로 구성된 그룹으로부터 선택된 1종 이상을 사용하는 것을 특징으로 하는 생분해성 공중합 폴리에스터의 제조방법.The method of claim 1, wherein at least one selected from the group consisting of dibutyl tin oxide, tin chloride, tin octoate, hexabutyl disstenoxane, tributyl tin methoxydo, and tributyl tin chloride is used as the catalyst. A method for producing a biodegradable copolyester. 미생물합성 지방족 폴리에스터를 질소분위기와 용매 및 촉매의 존재하에서 화학합성 지방족 폴리에스터와 에스테르 교환반응시켜 제조된 생분해성 공중합 폴리에스터.A biodegradable copolyester prepared by transesterifying microbial synthetic aliphatic polyester with a chemical synthetic aliphatic polyester in the presence of a nitrogen atmosphere, a solvent and a catalyst. ※ 참고사항 :최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940036638A 1994-12-24 1994-12-24 Process for preparing biodegradable polyester copolymer KR0158428B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940036638A KR0158428B1 (en) 1994-12-24 1994-12-24 Process for preparing biodegradable polyester copolymer

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Application Number Priority Date Filing Date Title
KR1019940036638A KR0158428B1 (en) 1994-12-24 1994-12-24 Process for preparing biodegradable polyester copolymer

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KR960022669A true KR960022669A (en) 1996-07-18
KR0158428B1 KR0158428B1 (en) 1999-01-15

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