JPS6456102A - Aromatic polyimide semipermeable membrane and its production - Google Patents

Aromatic polyimide semipermeable membrane and its production

Info

Publication number
JPS6456102A
JPS6456102A JP21384587A JP21384587A JPS6456102A JP S6456102 A JPS6456102 A JP S6456102A JP 21384587 A JP21384587 A JP 21384587A JP 21384587 A JP21384587 A JP 21384587A JP S6456102 A JPS6456102 A JP S6456102A
Authority
JP
Japan
Prior art keywords
soln
aromatic polyimide
semipermeable membrane
tetracarboxylic acid
aromatic
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
JP21384587A
Other languages
Japanese (ja)
Other versions
JPH0530491B2 (en
Inventor
Kanji Nakagawa
Kazunari Harima
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP21384587A priority Critical patent/JPS6456102A/en
Publication of JPS6456102A publication Critical patent/JPS6456102A/en
Publication of JPH0530491B2 publication Critical patent/JPH0530491B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To obtain aromatic polyimide semipermeable membrane having sufficient resistance to hot water enough for hot sterilization, having also high water permeability and high fractionating capacity by constituting the film of a biphenyl tetracarboxylic acid component and a bis(aminophenoxy) compd. component. CONSTITUTION:An aromatic tetracarboxylic acid component such as 3,3',4,4'-biphenyl tetracarboxylic acid dianhydride, etc., and an aromatic diamine component such as 1,4-bis(4-aminophenoxy)benzene, etc., are dissolved in a phenolic solvent such as 4-chlorophenol, etc. A swelling agent such as polyethylene glycol, etc., is added to the soln., and a soln. of aromatic polyimide is obtd. by carrying out condensation and imidization in the soln. Obtd. dope soln. after filtration of the aromatic polyimide soln. is flowed on a glass plate forming thus liquid thin film, then, the thin film is dipped in a coagulation bath of ethanol, etc. The film is further treated in hot water to obtain a semipermeable membrane having >=0.1m<3>/m<2>.day.kg/cm<2> permeation velocity for pure water.
JP21384587A 1987-08-27 1987-08-27 Aromatic polyimide semipermeable membrane and its production Granted JPS6456102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21384587A JPS6456102A (en) 1987-08-27 1987-08-27 Aromatic polyimide semipermeable membrane and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21384587A JPS6456102A (en) 1987-08-27 1987-08-27 Aromatic polyimide semipermeable membrane and its production

Publications (2)

Publication Number Publication Date
JPS6456102A true JPS6456102A (en) 1989-03-03
JPH0530491B2 JPH0530491B2 (en) 1993-05-10

Family

ID=16645970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21384587A Granted JPS6456102A (en) 1987-08-27 1987-08-27 Aromatic polyimide semipermeable membrane and its production

Country Status (1)

Country Link
JP (1) JPS6456102A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7964698B2 (en) * 2007-11-05 2011-06-21 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wholly aromatic liquid crystalline polyetherimide (LC-PEI) resins
JP2021119003A (en) * 2017-03-31 2021-08-12 宇部興産株式会社 Gas separation membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7964698B2 (en) * 2007-11-05 2011-06-21 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wholly aromatic liquid crystalline polyetherimide (LC-PEI) resins
JP2021119003A (en) * 2017-03-31 2021-08-12 宇部興産株式会社 Gas separation membrane

Also Published As

Publication number Publication date
JPH0530491B2 (en) 1993-05-10

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