Methacrylic Acid → Methacrylic acid ethylene oxide

HRID 1499666Notes

Reaction equation

[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

Participants

Conditions

Temperature: 75 °C

Procedure

A reaction container equipped with a stirring rod and a thermometer was charged with 683 parts by mass of water, 11 parts by mass 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 by mass of styrene, 138 parts by mass of methacrylic acid and 1 part by mass 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 by mass 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 1] of a vinyl resin (a copolymer of styrene-methacrylic acid-sodium salt of sulfate ester of methacrylic acid-ethylene oxide adduct).

Workup

customA reaction container equipped with a stirring rod
customto thereby obtain a white emulsion
customto react for 5 hours

Sources & evidence

ORD record: ord-e614ed9219c146b6990e56b314b01ef3
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09201326B2

Reaction notes

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