Acrylic Acid → Sodium acrylate sodium acrylamidomethylpropanesulfonate

HRID 234773Notes

Reaction equation

HRID 234773 reaction equation
[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([NH:10][CH2:11][O:12][S:13]([CH2:16][CH2:17][CH3:18])(=[O:15])=[O:14])(=[O:9])[CH:7]=[CH2:8].[Na:19].S(OOS([O-])(=O)=O)([O-])(=O)=O.[K+].[K+].[OH-].[Na+:33]>O>[C:1]([O-:5])(=[O:4])[CH:2]=[CH2:3].[Na+:33].[C:6]([NH:10][CH2:11][O:12][S:13]([CH2:16][CH2:17][CH3:18])(=[O:15])=[O:14])(=[O:9])[CH:7]=[CH2:8].[Na:19]

Participants

6

Reactant 4

HCID 6581Acrylic AcidHCID 14798Sodium HydroxideHCID 24412Potassium PersulfateHCID 86750231CID 86750231

Product 1

HCID 86750230Sodium acrylate sodium acrylamidomethylpropanesulfonate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

36.1 g of acrylic acid was dissolved in 16.0 g of water and neutralized with 53.0 g of a 30 wt. % aqueous sodium hydroxide solution under cooling. Thereafter, 101.3 g of a 40 wt. % aqueous sodium acrylamidomethylpropanesulfonate solution was added thereto, and 10.7 g of a 2.8 wt. % aqueous potassium persulfate solution was added thereto to prepare a homogeneous solution as the aqueous monomer/initiator solution. Thereafter, the same procedure as that of Example 4 was repeated, thereby providing 93.5 g of sodium acrylate/sodium acrylamidomethylpropanesulfonate copolymer. The resultant polymer was in the form of distorted granular particles having an average diameter of 550 μm and a bulk density of 0.45 g/ml.

Workup

  1. temperatureunder cooling
  2. customto prepare a homogeneous solution as the aqueous monomer/initiator solution

Sources & evidence

ORD record
ord-53fb1b815cca40f6ba6c21eedf03a73d
Source dataset
uspto-grants-1997_01
Patent number
US05596056

Reaction notes

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