Methyl Methacrylate → MMA BA beta-CEA

HRID 1394832Notes

Reaction equation

HRID 1394832 reaction equation
S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+].[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]([O:33][CH2:34][CH2:35][C:36]([OH:38])=[O:37])(=[O:32])[CH:30]=[CH2:31].CCCCCCCCCCCCS>O>[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]([O:33][CH2:34][CH2:35][C:36]([OH:38])=[O:37])(=[O:32])[CH:30]=[CH2:31]

Participants

7

Reactant 5

HCID 6658Methyl MethacrylateHCID 81951-DodecanethiolHCID 8846Butyl AcrylateHCID 62648Ammonium PersulfateHCID 905582-Carboxyethyl acrylate

Product 1

HCID 131726813MMA BA beta-CEA

Reagents, catalysts & solvents 1

HCID 962WaterSolvent3×

Procedure

An aqueous solution of DOWFAX surfactant (0.68 g) in 514 g of deionized water was heated to 76° C., and an initiator solution of 8.2 g of ammonium persulfate in 45 g of deionized water was added. A second aqueous solution of 10.8 g DOWFAX, 257 g deionized water was prepared, and a monomer solution of 467.1 g methyl methacrylate (MMA), 168.4 g butyl acrylate (BA), 30.9 g of β-carboxyethyl acrylate (β-CEA) and 7.5 mL dodecylthiol was added to form a monomer latex suspension. The monomer latex suspension is then added dropwise over the course of 3 hours into the first aqueous solution. Polymerization was continued for another 4 hours after completion of the addition. A poly(MMA/BA/β-CEA) polymer latex with a solids content of 45% was obtained.

Workup

  1. customwas prepared
  2. customto form a monomer latex suspension
  3. additionThe monomer latex suspension is then added dropwise over the course of 3 hours into the first aqueous solution
  4. customPolymerization
  5. additionafter completion of the addition

Sources & evidence

ORD record
ord-9888c9bb701c4734bf16bb6439970448
Source dataset
uspto-grants-2008_03
Patent number
US07349147B2

Reaction notes

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