Methacrylic Acid → Methacrylic acid ethylene oxide

HRID 876132Notes

Reaction equation

HRID 876132 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.[C:19]([OH:24])(=[O:23])[C:20]([CH3:22])=[CH2:21].C(OCCCC)(=O)C=C.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].[CH2:3]1[O:4][CH2:2]1.[C:19]([OH:24])(=[O:23])[C:20]([CH3:22])=[CH2:21]

Participants

9

Reactant 6

HCID 4093Methacrylic AcidHCID 7501StyreneHCID 8846Butyl AcrylateHCID 62648Ammonium Persulfate2×HCID 5360545SodiumHCID 21880491Methacrylic acid ethylene oxide

Product 2

HCID 21880491Methacrylic acid ethylene oxideHCID 86592924Styrene-methacrylic acid sodium

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
75 °C

Procedure

A reaction container equipped with a stirring bar and a thermometer was charged with water (683 parts), a sodium salt of a sulfate ester of methacrylic acid ethylene oxide adducts (ELEMINOL RS-30, product of Sanyo Chemical Industries, Ltd.) (16 parts), styrene (83 parts), methacrylic acid (83 parts), n-butyl acrylate (110 parts) and ammonium persulfate (1 part). The resultant mixture was stirred at 400 rpm for 15 min, resulting in a white emulsion. The white emulsion was then heated to 75° C. of an inside system temperature, followed by reacting for 5 hours. Next, 1% aqueous ammonium persulfate solution (30 parts) was added thereto, and aged at 75° C. for 5 hours to thereby obtain an aqueous dispersion liquid of a vinyl resin (copolymer of styrene-methacrylic acid-sodium salt of a sulfate ester of methacrylic acid ethylene oxide adduct) [styrene/acryl resin particle dispersion liquid]. The [styrene/acryl resin particle dispersion liquid] was found to have the volume average particle diameter of 14 nm through measurement with LA-920 (product of HORIBA Co.), the acid value of 45 mgKOH/g, the weight average molecular weight (Mw) of 300,000, and the glass transition temperature (Tg) of 60° C.

Workup

  1. customA reaction container equipped with a stirring bar
  2. customresulting in a white emulsion
  3. waitaged at 75° C. for 5 hours

Sources & evidence

ORD record
ord-097faa29500a43ea894c0de67238f848
Source dataset
uspto-grants-2015_03
Patent number
US08986916B2

Reaction notes

Loading…