Ethylenediaminetetraacetic Acid → Potassium;prop-2-enamide;prop-2-enoate

HRID 1085035Notes

Reaction equation

HRID 1085035 reaction equation
[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([OH:10])(=[O:9])[CH:7]=[CH2:8].C(N(CC(O)=O)CC(O)=O)CN(CC(O)=O)CC(O)=O.Br([O-])(=O)=O.[K+:35].[OH-].[K+].CCCCCCCC/C=C\CCCCCCCC(OCC(O)[C@H]1OC[C@H](O)[C@H]1O)=O.N(C(C)(C)C#N)=NC(C)(C)C#N.S(S([O-])=O)([O-])(=O)=O.[Na+].[Na+]>O>[C:1]([NH2:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([O-:10])(=[O:9])[CH:7]=[CH2:8].[K+:35]

Participants

10

Reactant 8

HCID 6049Ethylenediaminetetraacetic AcidHCID 6547AzobisisobutyronitrileHCID 6579AcrylamideHCID 6581Acrylic AcidHCID 14797Potassium HydroxideHCID 656671Sodium PyrosulfiteHCID 23673461Potassium BromateHCID 70693544Span #80 (Sorbitan monooleate)

Product 1

HCID 16212816Potassium;prop-2-enamide;prop-2-enoate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

The copolymer may be manufactured as follows: a water phase containing 199.1 g of acrylamide, 84.5 g of acrylic acid, 3.0 g of ethylenediaminetetraacetic acid, 0.2 g of potassium bromate, 60.3 g of potassium hydroxide and 342 g of water is homogenized with an oil phase containing 240 g of oil, 20 g of sorbitan monooleate, 0.2 g of 2,2'-azobis-(isobutyronitrile). The emulsion is then transferred to a suitable reaction vessel with stirring and is sparged with nitrogen. Polymerization is initiated and sustained by continuously adding a solution of sodium metabisulfite throughout the exotherm. The cooling is provided to maintain the temperature of the system between 35° C.-45° C. The polymerization is completed in about 6-10 hours to give an emulsion product of acrylamide/potassium acrylate copolymer. To produce a self-inverting product, 24 g of a breaker system composed of a 1.75:1 blend of the reaction product of nonylphenol with 6 moles of ethylene oxide and the reaction product of dinonylphenol with 24 moles of ethylene oxide is added.

Workup

  1. customThe emulsion is then transferred to a suitable reaction vessel
  2. stirringwith stirring
  3. customis sparged with nitrogen
  4. customPolymerization
  5. customThe cooling is provided
  6. temperatureto maintain the temperature of the system between 35° C.-45° C

Sources & evidence

ORD record
ord-b13754e973c04a20ad1b1c71650c5be6
Source dataset
uspto-grants-1991_04
Patent number
US05007481

Reaction notes

Loading…