Reaction equation
C(O[N:7]([CH2:10][CH3:11])[CH2:8][CH3:9])(=O)C(C)=C.[C:12]([O:17][CH3:18])(=[O:16])[C:13]([CH3:15])=[CH2:14].Cl.Cl.N(C(C(=N)N)(C)C)=N[C:23](C(=N)N)(C)C>O>[C:12]([O:17][CH2:18][CH2:23][N:7]([CH2:8][CH3:9])[CH2:10][CH3:11])(=[O:16])[C:13]([CH3:15])=[CH2:14].[C:12]([O:17][CH3:18])(=[O:16])[C:13]([CH3:15])=[CH2:14]Participants
Conditions
- Temperature
- 60 °C
Procedure
In a flask equipped with a stirring blade and a tube for nitrogen introduction were charged 1,500 parts of ion-exchanged water and heated to 60° C. Twenty parts of diethylamino methacrylate and 60 parts of methyl methacrylate were added thereto while stirring. To the mixture were further added 20 parts 2,2'-azobis(2-amidinopropane) dihydrochloride ("V-50" produced by Wako Pure Chemical Ind. Ltd.) and 10 parts of 2,2'-azobis(2-methyl-N-(1,1'-bis(hydroxymethyl)-2-hydroxyethyl)propionamide) ("V-080" produced by Wako Pure Chemical Ind. Ltd.), followed by heating to 65° C., at which the mixture was subjected to soap-free polymerization for 24 hours. After completion of the reaction, the fine particles thus produced were washed with 5000 parts of ion-exchanged water by means of a centrifugal separator to obtain fine particles of a diethylaminoethyl methacrylate/methyl methacrylate copolymer having an amidino hydrochloride group and a hydroxyl group on the surface thereof and having an average particle size of 0.5 μm.
Workup
- customIn a flask equipped with a stirring blade and a tube for nitrogen introduction
- temperatureby heating to 65° C., at which the mixture
- customwas subjected to soap-free polymerization for 24 hours
- customAfter completion of the reaction
- customthe fine particles thus produced
- washwere washed with 5000 parts of ion-exchanged water by means of a centrifugal separator
Sources & evidence
- ORD record
- ord-98d90d9685bf4d2c847faac8f4191f84
- Source dataset
- uspto-grants-1996_01
- Patent number
- US05484677
Linked notes
Loading…