Itaconic acid → Vinylidene chloride vinyl chloride n-butyl acrylate itaconic acid

HRID 128475

Reaktionsgleichung

Reaktionsgleichung von HRID 128475
[C:1]([OH:9])(=[O:8])[C:2]([CH2:4][C:5]([OH:7])=[O:6])=[CH2:3].C(=O)([O-])O.[Na+].[Na][Na].[Na].[C:18]([O:22][CH2:23][CH2:24][CH2:25][CH3:26])(=[O:21])[CH:19]=[CH2:20].[C:27]([Cl:30])([Cl:29])=[CH2:28].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+].S(S([O-])=O)([O-])(=O)=O.[K+].[K+].[CH:52]([Cl:54])=[CH2:53].[OH-].[Na+]>O>[C:27]([Cl:30])([Cl:29])=[CH2:28].[CH:52]([Cl:54])=[CH2:53].[C:18]([O:22][CH2:23][CH2:24][CH2:25][CH3:26])(=[O:21])[CH:19]=[CH2:20].[C:1]([OH:9])(=[O:8])[C:2]([CH2:4][C:5]([OH:7])=[O:6])=[CH2:3]

Komponenten

12

Edukt 10

HCID 811Itaconic acidHCID 6338Vinyl ChlorideHCID 6366Vinylidene chlorideHCID 8846Butyl AcrylateHCID 14798Sodium HydroxideHCID 28019Potassium MetabisulfiteHCID 62648Ammonium PersulfateHCID 141233DisodiumHCID 516892Sodium BicarbonateHCID 5360545Sodium

Produkt 1

HCID 131712144Vinylidene chloride vinyl chloride n-butyl acrylate itaconic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

In an autoclave were placed 1650 ml of water and 9.6 g of itaconic acid. After dissolution a solution of 6 g of sodium hydrogen carbonate in 120 ml of water was added. Subsequently, 98 ml of a 10% aqueous solution of the disodium salt of disulphonated dodecyl diphenyl ether and 49 ml of a 10% aqueous solution of the sodium salt of sulphonated dodecylbenzene were added as emulsifying agents. Then 96 g of n-butyl acrylate, 144 g of vinylidene chloride, 9.8 g of ammonium persulphate, and 4.9 g of potassium metabisulphite were added. The autoclave was sealed and stirring started. Under nitrogen pressure 240 g of vinyl chloride were pressed into the autoclave, which was then heated to 50° C. with stirring. After this temperature had been reached stirring was continued for 15 to 30 min. The temperature of the latex rose to about 65° C. The reaction was continued for about 3 h whereupon the latex was cooled to room temperature. The pH thereof amounted to 2.6 and was adjusted to 6 by means of 100 ml of 1 N aqueous sodium hydroxide. The latex was readily filtrable and contained the copolymer in a concentration of 20%.

Aufarbeitung

  1. additionwas added
  2. customThe autoclave was sealed
  3. stirringwith stirring
  4. stirringAfter this temperature had been reached stirring
  5. customto about 65° C
  6. waitThe reaction was continued for about 3 h
  7. temperaturewhereupon the latex was cooled to room temperature

Quellen und Nachweise

ORD-Eintrag
ord-99d46ef713fa41969d42a6e732f63295
Quelldatensatz
uspto-grants-1981_03
Patentnummer
US04259429

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