KR950032374A - Method for producing polytetramethylene ether glycol - Google Patents

Method for producing polytetramethylene ether glycol Download PDF

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Publication number
KR950032374A
KR950032374A KR1019950003064A KR19950003064A KR950032374A KR 950032374 A KR950032374 A KR 950032374A KR 1019950003064 A KR1019950003064 A KR 1019950003064A KR 19950003064 A KR19950003064 A KR 19950003064A KR 950032374 A KR950032374 A KR 950032374A
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South Korea
Prior art keywords
ether glycol
polytetramethylene ether
producing
producing polytetramethylene
ring
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KR1019950003064A
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Korean (ko)
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KR100315962B1 (en
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노부유끼 무라이
히데또시 다나까
Original Assignee
미우라 아끼라
미쓰비시가가꾸 가부시끼가이샤
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Publication of KR950032374A publication Critical patent/KR950032374A/en
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Publication of KR100315962B1 publication Critical patent/KR100315962B1/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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran
    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether 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)
  • General Chemical & Material Sciences (AREA)
  • Polyethers (AREA)

Abstract

본 발명은 테트라히드로푸란을 플루오로술폰산 촉매의 존재 하에, 개환 중합 시킨 후, 수득된 중합체의 말단을 가수 분해하는 폴리테트라메틸렌에테르글리콜에 제조 방법에 있어서, 촉매로서 사용하는 플루오로술폰산으로서, 디메틸 황산의 함유량이 0.2중량% 이하인 것을 사용하는 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조 방법에 관한 것이다.The present invention relates to polytetramethylene ether glycol in which tetrahydrofuran is subjected to ring-opening polymerization in the presence of a fluorosulfonic acid catalyst and then hydrolyzes the terminal of the obtained polymer. It relates to a method for producing polytetramethylene ether glycol, wherein the content of sulfuric acid is 0.2% by weight or less.

Description

폴리테트라메틸렌에테르글리콜의 제조방법Method for producing polytetramethylene ether glycol

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

Claims (7)

테트라히드로푸란을 플루오로술폰산 촉매의 존재 하에, 개환 중합시킨 후, 수득된 중합체의 말단을 가수분해하는 폴리테트라메틸렌에 테르글리콜의 제조 방법에 있어서, 촉매로서 사용하는 플루오로술폰산으로서,디메틸 황산의 함유량이 0.2중량% 이하인 것을 사용하는 것을 특징으로하 하는 폴리테트라메틸렌에테르글리콜의 제조방법.Tetrahydrofuran is subjected to ring-opening polymerization in the presence of a fluorosulfonic acid catalyst followed by hydrolysis of the terminal of the obtained polymer. A method for producing polytetramethylene ether glycol, wherein the content is 0.2% by weight or less. 제1항에 있어서, 플루오로술폰산 촉매의 사용량이 원료 테트라 히드로푸란에 대하여 2∼15중량%인 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조방법.The method for producing polytetramethylene ether glycol according to claim 1, wherein the amount of the fluorosulfonic acid catalyst used is 2 to 15% by weight based on the raw material tetrahydrofuran. 제1항에 있어서, 제조된 폴리테트라메틸렌에테르글리콜이 수평균 분자량 500∼3000이며, 말단 수산기에 대한 메톡시기의 비율이 0.02몰% 이하인 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조방법.The method for producing polytetramethylene ether glycol according to claim 1, wherein the produced polytetramethylene ether glycol has a number average molecular weight of 500 to 3000, and the ratio of methoxy groups to terminal hydroxyl groups is 0.02 mol% or less. 제1항에 있어서, 플루오로술폰산이 디메틸황산을 함유하는 액체 삼산화항을 기화시켜서 수득한 삼산화황과 무수불산을 반응시켜서 수득된 것인 폴리테트라메틸렌에테르글리콜의 제조방법,The method for producing polytetramethylene ether glycol according to claim 1, wherein the fluorosulfonic acid is obtained by reacting sulfur trioxide and hydrofluoric anhydride obtained by vaporizing a liquid trioxide port containing dimethyl sulfuric acid. 제1항에 있어서, 플루오로술폰산을 첨사하기 전에 발연 황산을 개환 중합 반응계에 첨사하는 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조방법,The method for producing polytetramethylene ether glycol according to claim 1, wherein fuming sulfuric acid is added to the ring-opening polymerization reaction system before adding fluorosulfonic acid. 제1항에 있어서, 게환 중합 반응이 0∼60℃에서 1∼10시간의 조건으로 실시되는 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조방법.The method for producing polytetramethylene ether glycol according to claim 1, wherein the ring-cycling polymerization reaction is carried out at 0 to 60 ° C for 1 to 10 hours. 제1항에 있어서, 가수분해 반응이 수득된 중합체에 대하여 0.5∼2 용량배의 물을 혼합시킨 후, 교반하에 70∼100℃에서 1∼20시간의 조건으로 수행되는 것을 특징으로 하는 폴리테트라메틸렌에테르글리콜의 제조방법.The polytetramethylene according to claim 1, wherein the hydrolysis reaction is carried out under a condition of 1 to 20 hours at 70 to 100 DEG C after mixing 0.5 to 2 volumes of water with respect to the obtained polymer. Method for preparing ether glycol. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950003064A 1994-02-17 1995-02-17 Method for producing polytetramethylene ether glycol KR100315962B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6020425A JPH07228685A (en) 1994-02-17 1994-02-17 Production of polytetramethylene ether glycol
JP94-20425 1994-02-17

Publications (2)

Publication Number Publication Date
KR950032374A true KR950032374A (en) 1995-12-20
KR100315962B1 KR100315962B1 (en) 2002-02-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100824978B1 (en) * 2007-04-20 2008-04-28 주식회사 효성 Method for producing polytetramethylene etherglycol using pre-reactor
KR100865134B1 (en) * 2007-04-20 2008-10-24 주식회사 효성 Method for Adjusting Molecular Weight Distribution of the Polytetramethylene ether glycol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020195641A1 (en) * 2019-03-28 2020-10-01 三菱ケミカル株式会社 Polyalkylene ether glycol composition and polyurethane production method using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100824978B1 (en) * 2007-04-20 2008-04-28 주식회사 효성 Method for producing polytetramethylene etherglycol using pre-reactor
KR100865134B1 (en) * 2007-04-20 2008-10-24 주식회사 효성 Method for Adjusting Molecular Weight Distribution of the Polytetramethylene ether glycol

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Publication number Publication date
KR100315962B1 (en) 2002-02-28
JPH07228685A (en) 1995-08-29

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