JPS5714603A - Stabilization of cationic polyacrylamide - Google Patents
Stabilization of cationic polyacrylamideInfo
- Publication number
- JPS5714603A JPS5714603A JP8839080A JP8839080A JPS5714603A JP S5714603 A JPS5714603 A JP S5714603A JP 8839080 A JP8839080 A JP 8839080A JP 8839080 A JP8839080 A JP 8839080A JP S5714603 A JPS5714603 A JP S5714603A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- polyacrylamide
- dialkylamine
- formaldehyde
- aqueous solution
- 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
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: A dialkylamine and formaldehyde are made to act on a polyacrylamide aqueous solution and the reaction mixture is neutralized with an acid and made acidic to produce the titled polymer suitably used as a flocculant, because of its being free from bad odor and steep reaution in cationization degree by dilution with water.
CONSTITUTION: A dialkylamine such as dimethylamine and formaldehyde, e.g. in the form of formalin, are added to a polyacrylamide aqueous solution and they heated at 40W70°C for 20W60min to effect the Mannich reaction shown by the equation (R, R' are alkyl group), thus causing the aminomethylation of polyacrylamide. After the completion of the reaction, the reaction mixture is acidified with an acid such as hydrochloric acid to produce the objective polymer with stabilized cationization degree, i.e., the constant amount of cationic groups.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8839080A JPS5714603A (en) | 1980-06-28 | 1980-06-28 | Stabilization of cationic polyacrylamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8839080A JPS5714603A (en) | 1980-06-28 | 1980-06-28 | Stabilization of cationic polyacrylamide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5714603A true JPS5714603A (en) | 1982-01-25 |
Family
ID=13941459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8839080A Pending JPS5714603A (en) | 1980-06-28 | 1980-06-28 | Stabilization of cationic polyacrylamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5714603A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0405712A2 (en) * | 1989-06-30 | 1991-01-02 | Diatec Polymers | Protonated Mannich polymers |
-
1980
- 1980-06-28 JP JP8839080A patent/JPS5714603A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0405712A2 (en) * | 1989-06-30 | 1991-01-02 | Diatec Polymers | Protonated Mannich polymers |
EP0405712A3 (en) * | 1989-06-30 | 1992-02-05 | Diatec Polymers | Protonated mannich polymers |
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