Vinyl Acetate → Vinyl Acetate

HRID 1458501Notes

Reaction equation

HRID 1458501 reaction equation
[C:1]([O:4][CH:5]=[CH2:6])(=[O:3])[CH3:2].[OH-].[NH4+]>CO>[C:1]([O:4][CH:5]=[CH2:6])(=[O:3])[CH3:2].[CH:1]([OH:3])=[CH2:2]

Participants

5

Reactant 2

HCID 7904Vinyl AcetateHCID 14923Ammonium Hydroxide

Product 2

HCID 7904Vinyl AcetateHCID 11199Vinyl alcohol

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

To 100 g of a copolymer made by the process of the present invention and having the composition 55.8 wt % vinyl acetate, 32.8 wt % TFE and 11.4 wt % HFP, was added 500 ml of methanol and 40 ml of concentrated ammonium hydroxide to form a copolymer suspension in the methanol. After three days at room temperature with occasional shaking, the resulting solution was heated to remove the reaction by-products to give a 25.1 wt % solution of polymer of composition 2.7 wt % vinyl acetate, 37.4 wt % vinyl alcohol, 44.5 wt % TFE, and 15.4 wt % HFP.

Workup

  1. temperaturethe resulting solution was heated
  2. customto remove the reaction by-products

Sources & evidence

ORD record
ord-48d81ec249dc48c7a168b14c2946ec78
Source dataset
uspto-grants-1998_12
Patent number
US05851593

Reaction notes

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