JPS5541808A - Preparation of extremely thin polymer film - Google Patents
Preparation of extremely thin polymer filmInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1978
- 1978-09-18 JP JP11364178A patent/JPS5541808A/en active Pending
Cited By (5)
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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