JPS5690804A - Production of porous crosslinked polyvinyl alcohol - Google Patents
Production of porous crosslinked polyvinyl alcoholInfo
- Publication number
- JPS5690804A JPS5690804A JP16889679A JP16889679A JPS5690804A JP S5690804 A JPS5690804 A JP S5690804A JP 16889679 A JP16889679 A JP 16889679A JP 16889679 A JP16889679 A JP 16889679A JP S5690804 A JPS5690804 A JP S5690804A
- Authority
- JP
- Japan
- Prior art keywords
- pva
- salt
- suspending
- porous crosslinked
- component
- 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
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To obtain a porous crosslinked PVA useful as a packing material for chromatography, by disslving or suspending a salt in an aqueous PVA solution, adding to and reacting with the resulting solution or suspension, a crosslinking agent, and if necessary, extracting the salt from the reaction product.
CONSTITUTION: A porous crosslinked PVA having a specific area of above 0.1m2/g is obtained by dissolving or finely suspending in (A) an aqueous PVA solution in which a linear PVA is dissolved, (B) a salt such as NaCl or CaSO4, adding (C) a crosslinking agent such as glutaraldehyde to the resulting solution or suspension, suspending the resulting mixture in (D) an oil dispersing medium such as toluene, reacting the final dispersion and if necessary, extracting the salt from the reaction product. As component A, there is used an aqueous solution prepared by dissolving a linear PVA having a polymerization degree of several tens to several thousands and a saponification degree of at least 50mol%, in an amount to provide a 2W30% concentration. Component C is used usually in an amount of at least 5mol% based on OH groups of component A.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16889679A JPS5690804A (en) | 1979-12-25 | 1979-12-25 | Production of porous crosslinked polyvinyl alcohol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16889679A JPS5690804A (en) | 1979-12-25 | 1979-12-25 | Production of porous crosslinked polyvinyl alcohol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5690804A true JPS5690804A (en) | 1981-07-23 |
JPH0125761B2 JPH0125761B2 (en) | 1989-05-19 |
Family
ID=15876570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16889679A Granted JPS5690804A (en) | 1979-12-25 | 1979-12-25 | Production of porous crosslinked polyvinyl alcohol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690804A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598122A (en) * | 1985-01-22 | 1986-07-01 | Ciba-Geigy Corporation | Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens |
FR2596404A1 (en) * | 1986-03-27 | 1987-10-02 | Lhd Lab Hygiene Dietetique | Hydrogel, process of preparation and use in the field of dressings |
EP0256293A2 (en) * | 1986-07-09 | 1988-02-24 | Mitsubishi Kasei Corporation | Process for producing porous cross-linked polyvinyl alcohol particles |
US4802740A (en) * | 1985-02-13 | 1989-02-07 | Canon Kabushiki Kaisha | Liquid crystal alignment layer containing polyvinyl-alcohol and titanium-alkoxide |
JP2011184494A (en) * | 2010-03-05 | 2011-09-22 | Yokohama Rubber Co Ltd:The | Tire tread rubber composition and pneumatic tire using the same |
WO2019132029A1 (en) * | 2017-12-28 | 2019-07-04 | 株式会社クラレ | Super-absorbent polymer and water-retention material for agriculture |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4990795A (en) * | 1972-12-30 | 1974-08-29 |
-
1979
- 1979-12-25 JP JP16889679A patent/JPS5690804A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4990795A (en) * | 1972-12-30 | 1974-08-29 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598122A (en) * | 1985-01-22 | 1986-07-01 | Ciba-Geigy Corporation | Polyoxirane crosslinked polyvinyl alcohol hydrogel contact lens |
US4802740A (en) * | 1985-02-13 | 1989-02-07 | Canon Kabushiki Kaisha | Liquid crystal alignment layer containing polyvinyl-alcohol and titanium-alkoxide |
FR2596404A1 (en) * | 1986-03-27 | 1987-10-02 | Lhd Lab Hygiene Dietetique | Hydrogel, process of preparation and use in the field of dressings |
EP0256293A2 (en) * | 1986-07-09 | 1988-02-24 | Mitsubishi Kasei Corporation | Process for producing porous cross-linked polyvinyl alcohol particles |
JP2011184494A (en) * | 2010-03-05 | 2011-09-22 | Yokohama Rubber Co Ltd:The | Tire tread rubber composition and pneumatic tire using the same |
WO2019132029A1 (en) * | 2017-12-28 | 2019-07-04 | 株式会社クラレ | Super-absorbent polymer and water-retention material for agriculture |
Also Published As
Publication number | Publication date |
---|---|
JPH0125761B2 (en) | 1989-05-19 |
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