Réaction #2487422

Équation de réaction

sodium

methacrylic acid ethylene oxide

styrene

methacrylic acid

ammonium persulfate

ammonium persulfate

→

styrene methacrylic acid

methacrylic acid ethylene oxide

sodium

Solvants

water

Conditions de réaction

Traitement

1. 1
   AutreA reaction vessel equipped with a stirring rod
2. 2
   Autreto thereby prepare a white emulsion
3. 3
   TempératureThe obtained emulsion was heated until the internal system temperature
4. 4
   Autrereached 75° C.
5. 5
   Autreto react for 5 hours
6. 6
   workup.WAITthe resulting mixture was aged for 5 hours at 75° C.

Mode opératoire

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.

Source