Methacrylic Acid → HCID 21092714, compound

HRID 555185Notes

Reaction equation

HRID 555185 reaction equation
N(C(C)(C)C#N)=NC(C)(C)C#N.[C:13]([O:18][CH3:19])(=[O:17])[C:14]([CH3:16])=[CH2:15].[C:20]([O:24][CH2:25][CH2:26][CH2:27][CH3:28])(=[O:23])[CH:21]=[CH2:22].[C:29]([OH:34])(=[O:33])[C:30]([CH3:32])=[CH2:31]>C(OC(C)COC)(=O)C>[C:13]([O:18][CH3:19])(=[O:17])[C:14]([CH3:16])=[CH2:15].[C:20]([O:24][CH2:25][CH2:26][CH2:27][CH3:28])(=[O:23])[CH:21]=[CH2:22].[C:29]([OH:34])(=[O:33])[C:30]([CH3:32])=[CH2:31]

Participants

6

Reactant 4

HCID 4093Methacrylic AcidHCID 6547AzobisisobutyronitrileHCID 6658Methyl MethacrylateHCID 8846Butyl Acrylate

Product 1

HCID 21092714HCID 21092714, compound

Reagents, catalysts & solvents 1

HCID 7946Propylene glycol methyl ether acetateSolvent

Procedure

A reaction container equipped with a stirrer, a reflux condenser, a thermometer and a nitrogen inlet pipe was charged with propylene glycol monomethyl ether acetate (PMA) as a solvent and azobisisobutyronitrile as a polymerization initiator. A solution containing methyl methacrylate (MMA), n-butyl acrylate (nBA) and methacrylic acid (MAA) was added dropwise to the reaction container under a nitrogen gas atmosphere to conduct a radical polymerization reaction with heating, thereby obtaining an MMA-nBA-MAA type resin 1. After completion of the reaction, PMA was removed by heating and drying under reduced pressure to obtain a resin 1 as solids. This resin 1 was neutralized with an aqueous solution of potassium hydroxide to obtain an aqueous solution having a solid content concentration of 20% by mass. Incidentally, the resin 1 was in a state dissolved in the aqueous solution, and so the 50% cumulative volume average particle size (D50) of the resin 1 could not be measured. The weight average molecular weight of the resin 1 in terms of polystyrene was 12,000. The glass transition temperature of the resin 1 was 80° C. The acid value of the resin 1 as measured by a neutralization titration method was 60 mg KOH/g.

Workup

  1. customA reaction container equipped with a stirrer, a reflux condenser
  2. additionwas added dropwise to the reaction container under a nitrogen gas atmosphere
  3. customa radical polymerization reaction
  4. temperaturewith heating

Sources & evidence

ORD record
ord-3433065ed2094d5bae234daaa4dc8ef2
Source dataset
uspto-grants-2011_11
Patent number
US08052271B2

Reaction notes

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