Reaction equation
[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([O:11][CH2:12][CH2:13][N:14]([CH2:17][CH3:18])[CH2:15][CH3:16])(=[O:10])[C:7]([CH3:9])=[CH2:8].C(O)C=C.Cl.S(OOS([O-])(=O)=O)([O-])(=O)=O.[K+].[K+]>O>[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([O:11][CH2:12][CH2:13][N:14]([CH2:17][CH3:18])[CH2:15][CH3:16])(=[O:10])[C:7]([CH3:9])=[CH2:8]Participants
Procedure
A one liter four necked flask equipped with a reflux condenser, a stirrer, a thermometer and a supply pipe for nitrogen gas was charged with 63.9 g. of acrylamide, 18.6 g. of diethylaminoethyl methacrylate, 3.7 g. of allyl alcohol, 10.4 g. of 35 % hydrochloric acid and 646.4 g. of deionized water. The temperature was elevated to 60°C. while supplying nitrogen gas, and then 0.82 g. of potassium persulfate dissolved in 81.2 g. of deionized water was added to the flask. The temperature was further elevated to 80°C., and at this temperature the polymerization was carried out for 3 hours. After the conclusion of the polymerization, the reaction mixture was cooled to give an aqueous solution of acrylamide-diethylaminoethyl methacrylate copolymer. The concentration, pH value and viscosity at 25°C. of the solution were 10.1 %, 6.0 and 3,700 cP, respectively.
Workup
- additiona thermometer and a supply pipe for nitrogen gas was charged with 63.9 g
- customwas elevated to 60°C.
- customwas further elevated to 80°C.
- customAfter the conclusion of the polymerization
- temperaturethe reaction mixture was cooled
Sources & evidence
- ORD record
- ord-8ccc5d4427694da8828d8183b12ef772
- Source dataset
- uspto-grants-1976_08
- Patent number
- US03976824
Linked notes
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