JPS5541808A - Preparation of extremely thin polymer film - Google Patents

Preparation of extremely thin polymer film

Info

Publication number
JPS5541808A
JPS5541808A JP11364178A JP11364178A JPS5541808A JP S5541808 A JPS5541808 A JP S5541808A JP 11364178 A JP11364178 A JP 11364178A JP 11364178 A JP11364178 A JP 11364178A JP S5541808 A JPS5541808 A JP S5541808A
Authority
JP
Japan
Prior art keywords
water
polymer
extremely thin
film
oxygen
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.)
Pending
Application number
JP11364178A
Other languages
Japanese (ja)
Inventor
Shizuo Azuma
Kenko Yamada
Gen Kurisu
Kiyoshi Sugie
Shoji Kawase
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 JP11364178A priority Critical patent/JPS5541808A/en
Publication of JPS5541808A publication Critical patent/JPS5541808A/en
Pending legal-status Critical Current

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  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To prepare extremely thin films having well-balanced transmission coefficient and separation factor of oxygen by dropping a cychohexene solution of a polymer to water and forming an extremely thin film of the polymer on the surface of the water.
CONSTITUTION: Polymer consisting mainly of poly(4-methylpentene-1) is dissolved in cyclohexene solvent in an amount of 1W10% by weight of the polymer based on the resulting solution, and dropped on the surface of the water maintained at a temperature of 5W30°C. Immediately, droplets spread on the surface of the water to form an extreme thin circular film having a thickness of below 0.5μ. The formed film shows an oxygen separation factor of PO2/PN2=above 2.5 and an oxygen transmission coefficient of 10-8W10-9cc.cm/cm2.sec.cmHg. The film for practical use can simply be prepared.
COPYRIGHT: (C)1980,JPO&Japio
JP11364178A 1978-09-18 1978-09-18 Preparation of extremely thin polymer film Pending JPS5541808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11364178A JPS5541808A (en) 1978-09-18 1978-09-18 Preparation of extremely thin polymer film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11364178A JPS5541808A (en) 1978-09-18 1978-09-18 Preparation of extremely thin polymer film

Publications (1)

Publication Number Publication Date
JPS5541808A true JPS5541808A (en) 1980-03-24

Family

ID=14617378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11364178A Pending JPS5541808A (en) 1978-09-18 1978-09-18 Preparation of extremely thin polymer film

Country Status (1)

Country Link
JP (1) JPS5541808A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552334A (en) * 1978-10-14 1980-04-16 Mitsui Petrochem Ind Ltd Polymer solution
JPS5771605A (en) * 1980-10-23 1982-05-04 Teijin Ltd Manufacture of super thin film
JPS583829A (en) * 1981-06-30 1983-01-10 Teijin Ltd Continuous manufacture of very thin polymer film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552334A (en) * 1978-10-14 1980-04-16 Mitsui Petrochem Ind Ltd Polymer solution
JPS626586B2 (en) * 1978-10-14 1987-02-12 Mitsui Petrochemical Ind
JPS5771605A (en) * 1980-10-23 1982-05-04 Teijin Ltd Manufacture of super thin film
JPH0112521B2 (en) * 1980-10-23 1989-03-01 Teijin Ltd
JPS583829A (en) * 1981-06-30 1983-01-10 Teijin Ltd Continuous manufacture of very thin polymer film

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