Azobisisobutyronitrile → HCID 86733457, compound

HRID 1076946Notes

Reaction equation

HRID 1076946 reaction equation
[C:1]([O:4][CH:5]=[CH2:6])(=[O:3])[CH3:2].[CH2:7]([S:10]([O-:13])(=[O:12])=[O:11])[CH:8]=[CH2:9].[Na+:14].CC(N=NC(C#N)(C)C)(C#N)C>CO>[C:1]([O:4][CH:5]=[CH2:6])(=[O:3])[CH3:2].[CH2:7]([S:10]([O-:13])(=[O:12])=[O:11])[CH:8]=[CH2:9].[Na+:14]

Participants

5

Reactant 3

HCID 6547AzobisisobutyronitrileHCID 7904Vinyl Acetate2×HCID 23690996Sodium 2-propene-1-sulfonate

Product 1

HCID 86733457HCID 86733457, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A 2,000 ml. glass polymerization vessel equipped with a reflux condenser, a dropping funnel, a thermometer and a stirrer was charged with 430 parts of vinyl acetate, 215 parts of methanol, 30 parts of sodium allylsulfonate and 0.20% by mole of azobisisobutylonitrile per the vinyl acetate. After carrying out the polymerization at a temperature of 60° to 65°C. for 8 hours, the residual vinyl acetate was removed by a conventional method to give vinyl actate-sodium allylsulfonate copolymer containing 2.5% by mole of sodium allylsulfonate unit. Then the copolymer was hydrolyzed by a conventional method to give a modified PVA of which degree of hydrolysis in vinyl acetate unit was 90% by mole.

Workup

  1. customglass polymerization vessel
  2. customequipped with a reflux condenser, a dropping funnel
  3. customthe polymerization at a temperature of 60° to 65°C. for 8 hours
  4. customthe residual vinyl acetate was removed by a conventional method

Sources & evidence

ORD record
ord-11b2e5f031af4210ac967fe1120bb198
Source dataset
uspto-grants-1976_05
Patent number
US03959205

Reaction notes

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