Sodium Hydroxide → poly(vinyl alcohol-co-N-vinyl-2-pyrrolidone)

HRID 2292995

Reaction equation

HRID 2292995 reaction equation
[OH-].[Na+].[CH:3]([N:5]1[CH2:9][CH2:8][CH2:7][C:6]1=[O:10])=[CH2:4].[C:11](OC=C)(=[O:13])[CH3:12]>CO>[CH:3]([N:5]1[CH2:9][CH2:8][CH2:7][C:6]1=[O:10])=[CH2:4].[CH:11]([OH:13])=[CH2:12]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 270885Ganex E 535

Product 1

HCID 3082248poly(vinyl alcohol-co-N-vinyl-2-pyrrolidone)Yield 50.8%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

0.19 g (4.8 mmole) of sodium hydroxide was dissolved in 4.7 ml of methanol. The resultant solution was added to 800 mg of 1-vinylpyrrolidone/vinyl acetate copolymer (V). The mixture was stirred at room temperature for 48 hours. The hydrolyzed product, 1-vinyl pyrrolidone/vinyl alcohol copolymer was precipitated out in 10-fold excess of diethyl ether three times. The solid was then dried under vacuum at 60° C. overnight to yield 320 mg of 1-vinyl pyrrolidone/vinyl alcohol copolymer (VI). IR (KBr pellet): 3467.7, 2949.0, 1654.0, 1441.0, 1291.5, 649.9 cm-1: C-13 NMR, (D20) :17.6, 31.3, 33.6-35.1, 38.0-40.0, 42.6-45.9, 64.5-65.8.

Workup

  1. customThe hydrolyzed product, 1-vinyl pyrrolidone/vinyl alcohol copolymer was precipitated out in 10-fold excess of diethyl ether three times
  2. customThe solid was then dried under vacuum at 60° C. overnight

Sources & evidence

ORD record
ord-dd2803c335ee4abb8f52e70a6c31f341
Source dataset
uspto-grants-1997_11
Patent number
US05686071

Linked notes

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