JPS57174339A - Solution, method for preparing membrane and extremely thin membrane - Google Patents

Solution, method for preparing membrane and extremely thin membrane

Info

Publication number
JPS57174339A
JPS57174339A JP5844381A JP5844381A JPS57174339A JP S57174339 A JPS57174339 A JP S57174339A JP 5844381 A JP5844381 A JP 5844381A JP 5844381 A JP5844381 A JP 5844381A JP S57174339 A JPS57174339 A JP S57174339A
Authority
JP
Japan
Prior art keywords
org
water
dissolving
copolymer
solvent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5844381A
Other languages
Japanese (ja)
Other versions
JPH0150254B2 (en
Inventor
Kiyoshi Sugie
Kenko Yamada
Teizo Yamaji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP5844381A priority Critical patent/JPS57174339A/en
Priority to US06/270,128 priority patent/US4393113A/en
Priority to EP81302493A priority patent/EP0041839B1/en
Priority to DE8181302493T priority patent/DE3172123D1/en
Publication of JPS57174339A publication Critical patent/JPS57174339A/en
Publication of JPH0150254B2 publication Critical patent/JPH0150254B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To obtain an extremely thin solid membrane which exhibits required gas separation coefficient with a uniform thickness on the surface of the water and is useful for the production of a concentrated specified gas from a gas mixture, by dissolving an allylsilane copolymer in an org. solvent having an appropriate surface tension against water.
CONSTITUTION: An extremely thin membrane is produced from a solution obtd. by dissolving an allylsilane copolymer composed of a repeating unit of formulaI (wherein R1W3 are each a 1W10C alkyl) and a repeating unit of formula II (wherein R4 is H, 3C or lower alkyl; R5 is H, 20C or lower alkyl, alkenyl) and/or a repeating unit of formula III (wherein R6, R7 are eadh H, CH3) in a solvent consisting mainly of a volatile, water-immiscible org. liquid medium capable of dissolving said copolymer and satisfying the relationship of formula IV(wherein c is the surface tension of water, a is the surface tension of said soln. obtd. by dissolving said copolymer in said solvent and b is interfacial tension between said soln. and water, each unit being dyn/cm). Said solvent may contain other org. compd. having a partition coefficient K of 0.5W35 (wherein K is a ratio of the concn. of this org. compd. in said org. liquid medium to the concn. of this org. compd. in water).
COPYRIGHT: (C)1982,JPO&Japio
JP5844381A 1980-06-05 1981-04-20 Solution, method for preparing membrane and extremely thin membrane Granted JPS57174339A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP5844381A JPS57174339A (en) 1981-04-20 1981-04-20 Solution, method for preparing membrane and extremely thin membrane
US06/270,128 US4393113A (en) 1980-06-05 1981-06-03 Novel silicon-containing copolymer, ultrathin solid membrane composed of said copolymer, use of said solid membrane for concentrating a specified gas in a gaseous mixture, and process for producing said solid membrane
EP81302493A EP0041839B1 (en) 1980-06-05 1981-06-04 Ultrathin solid membrane composed of silicon-containing copolymer, process for producing said membrane and use thereof for concentrating a gas
DE8181302493T DE3172123D1 (en) 1980-06-05 1981-06-04 Ultrathin solid membrane composed of silicon-containing copolymer, process for producing said membrane and use thereof for concentrating a gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5844381A JPS57174339A (en) 1981-04-20 1981-04-20 Solution, method for preparing membrane and extremely thin membrane

Publications (2)

Publication Number Publication Date
JPS57174339A true JPS57174339A (en) 1982-10-27
JPH0150254B2 JPH0150254B2 (en) 1989-10-27

Family

ID=13084535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5844381A Granted JPS57174339A (en) 1980-06-05 1981-04-20 Solution, method for preparing membrane and extremely thin membrane

Country Status (1)

Country Link
JP (1) JPS57174339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100905A (en) * 1987-10-02 1988-05-06 Teijin Ltd Permselective membrane formed with novel copolymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63100905A (en) * 1987-10-02 1988-05-06 Teijin Ltd Permselective membrane formed with novel copolymer

Also Published As

Publication number Publication date
JPH0150254B2 (en) 1989-10-27

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