JPS5581705A - Preparation of chitosan membrane - Google Patents

Preparation of chitosan membrane

Info

Publication number
JPS5581705A
JPS5581705A JP15556878A JP15556878A JPS5581705A JP S5581705 A JPS5581705 A JP S5581705A JP 15556878 A JP15556878 A JP 15556878A JP 15556878 A JP15556878 A JP 15556878A JP S5581705 A JPS5581705 A JP S5581705A
Authority
JP
Japan
Prior art keywords
chitosan
membrane
polyethylene glycol
preferably used
acid
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
JP15556878A
Other languages
Japanese (ja)
Other versions
JPS5616686B2 (en
Inventor
Seiichi Mima
Masaru Miya
Susumu Yoshikawa
Reikichi Iwamoto
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP15556878A priority Critical patent/JPS5581705A/en
Publication of JPS5581705A publication Critical patent/JPS5581705A/en
Publication of JPS5616686B2 publication Critical patent/JPS5616686B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To obtain a chitosan membrane with appropriate membrane strength, high water permeability and solute permeability suitable for a ultrafilter membrance or a dialysis membrane by a method wherein a membrane is obtained from an acidic aqueous solution containing chitosan and polyethylene glycol is treated by alkali and thereafter washed with water. CONSTITUTION:A membrane is prepared from an acidic aqueous solution containing chitosan and polyethylene glycol, which is then treated by alkali and washed with water to remove polyethylene glycol. An applied chitosan is obtained by deachetylation of chitin which is a main component of crab or shrimp shell and a chitosan with average deacetylation degree of above about 90% is preferably used. As an acid, an organic acid is preferably used in order to reduce the deterioration of chitosan, and formic acid or acetic acid are preferably used from an economical standpoint. A polyethylene glycol of which an average M.W. is below 4000, preferably 400-2000, is used.
JP15556878A 1978-12-16 1978-12-16 Preparation of chitosan membrane Granted JPS5581705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15556878A JPS5581705A (en) 1978-12-16 1978-12-16 Preparation of chitosan membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15556878A JPS5581705A (en) 1978-12-16 1978-12-16 Preparation of chitosan membrane

Publications (2)

Publication Number Publication Date
JPS5581705A true JPS5581705A (en) 1980-06-20
JPS5616686B2 JPS5616686B2 (en) 1981-04-17

Family

ID=15608879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15556878A Granted JPS5581705A (en) 1978-12-16 1978-12-16 Preparation of chitosan membrane

Country Status (1)

Country Link
JP (1) JPS5581705A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077098A2 (en) * 1981-10-08 1983-04-20 ANIC S.p.A. Hollow chitosan fibres, and the process for their preparation
JPS62167331A (en) * 1986-01-20 1987-07-23 Unitika Ltd Chitosan sponge
JPS6316004A (en) * 1986-07-09 1988-01-23 Unie Koroido Kk High-performance filtration membrane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077098A2 (en) * 1981-10-08 1983-04-20 ANIC S.p.A. Hollow chitosan fibres, and the process for their preparation
JPS62167331A (en) * 1986-01-20 1987-07-23 Unitika Ltd Chitosan sponge
JPS6316004A (en) * 1986-07-09 1988-01-23 Unie Koroido Kk High-performance filtration membrane

Also Published As

Publication number Publication date
JPS5616686B2 (en) 1981-04-17

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