Methacrylic Acid → Methacrylic acid ethylene oxide

HRID 339438

Reaktionsgleichung

[Na:1].[CH2:2]1[O:4][CH2:3]1.[C:5]([OH:10])(=[O:9])[C:6]([CH3:8])=[CH2:7].[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH:11]([CH2:7][C:6](=[CH2:8])[C:5]([OH:10])=[O:9])=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[Na:1].[C:5]([OH:10])(=[O:9])[C:6]([CH3:8])=[CH2:7].[CH2:3]1[O:4][CH2:2]1

Komponenten

Reaktionsbedingungen

Temperatur: 75 °C

Versuchsvorschrift

A reaction container to which a stirring rod and a thermometer had been set was charged with 683 parts of water, 11 parts of sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid (ELEMINOL RS-30, product of Sanyo Chemical Industries Ltd.), 138 parts of styrene, 138 parts of methacrylic acid and 1 part of ammonium persulfate. The resultant mixture was stirred at 400 rpm for 15 min to thereby obtain a white emulsion. The white emulsion was heated to a system temperature of 75° C. and was allowed to react for 5 hours. Then, 30 parts of a 1% by mass aqueous ammonium persulfate solution was added to the reaction mixture, followed by aging at 75° C. for 5 hours, to thereby obtain an aqueous dispersion [particle dispersion liquid] of a vinyl resin (a copolymer of styrene-methacrylic acid-sodium salt of sulfuric acid ester of methacrylic acid-ethylene oxide adduct). The volume average particle diameter of the obtained [particle dispersion liquid] was found to be 0.14 μm, when measured using LA-920 (product of Horiba, Ltd.). Part of the [particle dispersion liquid] was dried to isolate resin.

Aufarbeitung

customto thereby obtain a white emulsion
customto react for 5 hours

Quellen und Nachweise

ORD-Eintrag: ord-dca2ccc2ad8a46c58d986d10cdd67c67
Quelldatensatz: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08895217B2

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