KR970065586A - 폴리락트산의 제조방법 - Google Patents

폴리락트산의 제조방법 Download PDF

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Publication number
KR970065586A
KR970065586A KR1019970009969A KR19970009969A KR970065586A KR 970065586 A KR970065586 A KR 970065586A KR 1019970009969 A KR1019970009969 A KR 1019970009969A KR 19970009969 A KR19970009969 A KR 19970009969A KR 970065586 A KR970065586 A KR 970065586A
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KR
South Korea
Prior art keywords
polylactic acid
lactide
mol
producing polylactic
polymerization catalyst
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KR1019970009969A
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English (en)
Other versions
KR100501629B1 (ko
Inventor
마사아키 오오타
마사히로 이토
Original Assignee
후지와라 키쿠오
카부시키카이샤 시마즈세이사쿠쇼
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Application filed by 후지와라 키쿠오, 카부시키카이샤 시마즈세이사쿠쇼 filed Critical 후지와라 키쿠오
Publication of KR970065586A publication Critical patent/KR970065586A/ko
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Publication of KR100501629B1 publication Critical patent/KR100501629B1/ko

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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
    • C08G63/02—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
    • 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
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

본 발명은 저중합촉매량, 저중합온도라고 하는 온화한 조건하에 있어서도, 효율좋게 포리락트산을 제조할 수 있는 방법을 제공하는 것을 과제로 하며, 그 해결수단으로서, 락티드, 고리상이미드화합물(예를들면 숙신이 미드) 및 중합촉매(예을들면 옥틸산주석)를, N2기류하, 100∼190℃로 가열교반해서, 중합반응을 행한다. 고리상이미드 화합물의 양은, 락티드에 대해서 1∼35mol%가 바람직하다. 중합촉매가 락티드에 대해서 0.00001∼0.1mol%로 적은 양이라고, 효율좋게 폴리락트산을 제조할 수 있다. 그리하여, 폴리머속으로의 촉매의 잔류와 폴리머의 착색을 피할수 있다.

Description

폴리락트산의 제조 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 중합촉매존재하, 락트산의 고리상2량체 락티드의 개환중합에 의해서 폴리락트산을 합성하는 방법에 있어서, 고리상이미드 화합물을 중합반응계에 첨가하는 것을 특징으로 하는, 폴리락트산의 제조방법.
  2. 청구항1에 있어서, 고리상이미드 화합물의 양이, 락티드에 대해서 1∼3moℓ%인 것을 특징으로 하는, 폴리락트산의 제조방법.
  3. 청구항1 또는 청구항2에 있어서, 고리상이미드 화합물이 숙신이미드인 것을 특징으로 하는, 폴리락트산의 제조방법.
  4. 청구항1∼청구항3의 어느 한 항에 있어서, 중합촉매의 양이, 락티드에 대해서 0.00001∼0.1moℓ%인 것을 특징으로 하는 폴리락트산의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970009969A 1996-03-22 1997-03-22 폴리락트산의제조방법 KR100501629B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP09310496A JP3588907B2 (ja) 1996-03-22 1996-03-22 ポリ乳酸の製造方法
JP96-93104 1996-03-22

Publications (2)

Publication Number Publication Date
KR970065586A true KR970065586A (ko) 1997-10-13
KR100501629B1 KR100501629B1 (ko) 2005-10-19

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KR1019970009969A KR100501629B1 (ko) 1996-03-22 1997-03-22 폴리락트산의제조방법

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Country Link
US (1) US5821327A (ko)
EP (1) EP0796881A1 (ko)
JP (1) JP3588907B2 (ko)
KR (1) KR100501629B1 (ko)
CN (1) CN1167776A (ko)

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Also Published As

Publication number Publication date
US5821327A (en) 1998-10-13
JPH09255766A (ja) 1997-09-30
CN1167776A (zh) 1997-12-17
JP3588907B2 (ja) 2004-11-17
EP0796881A1 (en) 1997-09-24
KR100501629B1 (ko) 2005-10-19

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