Sulfate Ion → Sulfate Ion

HRID 2045750Notes

Reaction equation

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

Participants

Conditions

Temperature: 75 °C

Procedure

A reaction container to which a stirring rod and a thermometer had been set was charged with 683 parts of water, 11 parts of a sodium salt of sulfate of an 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 prepare a white emulsion. The white emulsion was then heated to 75° C., followed by reaction for 5 hours. Next, 30 parts of a 1% by mass aqueous ammonium persulfate solution was added to the reaction mixture, and the resultant mixture was aged at 75° C. for 5 hours, to thereby obtain an aqueous dispersion liquid [fine particle dispersion liquid 1] of a vinyl resin (copolymer of styrene-methacrylic acid-sodium salt of sulfate of an ethylene oxide adduct of methacrylic acid). Through measurement with LA-920 (product of HORIBA Co.), the [fine particle dispersion liquid 1] was found to have a volume average particle diameter of 0.14 μm. Part of the [fine particle dispersion liquid 1] was dried to insolate resin.

Workup

customto prepare a white emulsion
customfollowed by reaction for 5 hours

Sources & evidence

ORD record: ord-7e5d69a665bc4e08be019f2fc4ce0ead
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08592117B2

Reaction notes

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