Methacrylic Acid → 2-Methylprop-2-enoic acid;styrene

HRID 2400240Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2400240
[Na:1].[C:2]([OH:7])(=[O:6])[C:3]([CH3:5])=[CH2:4].[CH2:8]1[O:10][CH2:9]1.[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[C:19]([OH:24])(=[O:23])[C:20]([CH3:22])=[CH2:21].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[C:2]([OH:7])(=[O:6])[C:3]([CH3:5])=[CH2:4].[Na:1].[C:19]([OH:24])(=[O:23])[C:20]([CH3:22])=[CH2:21].[CH2:9]1[O:10][CH2:8]1

Komponenten

9

Edukt 5

HCID 4093Methacrylic AcidHCID 7501StyreneHCID 62648Ammonium Persulfate2×HCID 5360545SodiumHCID 21880491Methacrylic acid ethylene oxide

Produkt 3

HCID 1657302-Methylprop-2-enoic acid;styreneHCID 5360545SodiumHCID 21880491Methacrylic acid ethylene oxide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A reaction vessel equipped with a stirring rod and a thermometer was charged with 683 parts by mass of water, 11 parts by mass of a sodium salt of sulfuric acid ester of methacrylic acid-ethylene oxide adduct (ELEMINOL RS-30, manufactured by Sanyo Chemical Industries, Ltd.), 138 parts by mass of styrene, 138 parts by mass of methacrylic acid, and 1 part by mass of ammonium persulfate, and the resulting mixture was stirred for 15 minutes at 400 rpm to thereby prepare a white emulsion. The obtained emulsion was heated until the internal system temperature reached 75° C., and then was allowed to react for 5 hours. To the resultant, 30 parts by mass of a 1% by mass ammonium persulfate aqueous solution was further added, and the resulting mixture was aged for 5 hours at 75° C., to thereby obtain an aqueous dispersion liquid of a vinyl resin (a copolymer of styrene/methacrylic acid/a sodium salt of sulfuric acid ester of methacrylic acid-ethylene oxide adduct), i.e. Particle Dispersion Liquid 1.

Aufarbeitung

  1. customA reaction vessel equipped with a stirring rod
  2. customto thereby prepare a white emulsion
  3. temperatureThe obtained emulsion was heated until the internal system temperature
  4. customreached 75° C.
  5. customto react for 5 hours
  6. waitthe resulting mixture was aged for 5 hours at 75° C.

Quellen und Nachweise

ORD-Eintrag
ord-777b6e478d7449c7a6262b3c65764c35
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08795938B2

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