JPS57137308A - Production of copolymer - Google Patents
Production of copolymerInfo
- Publication number
- JPS57137308A JPS57137308A JP2350681A JP2350681A JPS57137308A JP S57137308 A JPS57137308 A JP S57137308A JP 2350681 A JP2350681 A JP 2350681A JP 2350681 A JP2350681 A JP 2350681A JP S57137308 A JPS57137308 A JP S57137308A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- added
- fluorine
- copolymerization
- perfluoroacrylic 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
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: The emulsion copolymerization of perfluoroacrylic acid or its derivative is conducted by allowing its copolymerization to follow home polymerization of another fluorine-containing polymerizable monomer to give a copolymer.
CONSTITUTION: At least one of fluorine-containing monomers other than perfluoroacrylic acid or its derivatives such as tetralfluoroethylene is polymerized. At the start or after continuation for a certain time of the polymerization, perfluoroacrylic acid or its derivative such as perfluoroacrylic acid is added, further, a radical polymerization initiator and, when necessary, a polymerization degree regulator are added to effect the copolymerization at about 30W120°C. When the reaction pressure begins to drop, a prescribed amount of a fluorine- containing polymerizable monomer is added to continue the polymerization until the pressure comes down to about 10kg/cm2. At this point, the reaction is stopped to give the objective copolymer.
EFFECT: The reaction heat is easily removed, posttreatment is not needed and the polymerization rate is high.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2350681A JPS57137308A (en) | 1981-02-19 | 1981-02-19 | Production of copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2350681A JPS57137308A (en) | 1981-02-19 | 1981-02-19 | Production of copolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57137308A true JPS57137308A (en) | 1982-08-24 |
JPH021165B2 JPH021165B2 (en) | 1990-01-10 |
Family
ID=12112347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2350681A Granted JPS57137308A (en) | 1981-02-19 | 1981-02-19 | Production of copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57137308A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9441054B2 (en) | 2010-12-22 | 2016-09-13 | Solvay Specialty Polymers Italy S.P.A. | Vinylidene fluoride copolymers |
US9751967B2 (en) | 2010-12-22 | 2017-09-05 | Solvay Specialty Polymers Italy S.P.A. | Vinylidene fluoride and trifluoroethylene polymers |
CN111954657A (en) * | 2018-04-10 | 2020-11-17 | 阿科玛股份有限公司 | Functional fluoropolymers |
WO2023181035A1 (en) * | 2022-03-21 | 2023-09-28 | Technion Research & Development Foundation Limited | High molecular weight and highly functional vinylidene fluoride (vdf) based copolymers |
-
1981
- 1981-02-19 JP JP2350681A patent/JPS57137308A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9441054B2 (en) | 2010-12-22 | 2016-09-13 | Solvay Specialty Polymers Italy S.P.A. | Vinylidene fluoride copolymers |
US9751967B2 (en) | 2010-12-22 | 2017-09-05 | Solvay Specialty Polymers Italy S.P.A. | Vinylidene fluoride and trifluoroethylene polymers |
CN111954657A (en) * | 2018-04-10 | 2020-11-17 | 阿科玛股份有限公司 | Functional fluoropolymers |
EP3774714A4 (en) * | 2018-04-10 | 2021-12-22 | Arkema, Inc. | Functional fluoropolymers |
WO2023181035A1 (en) * | 2022-03-21 | 2023-09-28 | Technion Research & Development Foundation Limited | High molecular weight and highly functional vinylidene fluoride (vdf) based copolymers |
Also Published As
Publication number | Publication date |
---|---|
JPH021165B2 (en) | 1990-01-10 |
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