Styrene → Benzene, ethenyl-, polymer with 1,3-butadiene

HRID 1248659Notes

Reaction equation

HRID 1248659 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.ClC1C=CC=C(C(OO)=O)C=1>C1(C)C=CC=CC=1>[CH2:1]=[CH:2][CH:3]=[CH2:4].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

4

Reactant 2

HCID 7501StyreneHCID 70297m-Chloroperbenzoic acid

Product 1

HCID 62697Benzene, ethenyl-, polymer with 1,3-butadiene

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A random copolymer, containing 3 wt percent of polybutadiene and 97 percent styrene was prepared by techniques described in Szwarc, supra. The copolymer had a molecular weight of approximately 200,000 g/Mol. Approximately 10 g of the copolymer was dissolved in 200 ml of toluene. To this solution was added 0.15 g of 85 percent m-chloroperbenzoic acid. The mixture was stored for 48 hours. The mixture was then washed twice with 10 percent aqueous NaHCO3 and three times with distilled water. The polymer was precipitated into MeOH, and was dried under vacuum at 110 degrees C. for 12 hours. The polymer was stored under helium prior to use.

Workup

  1. customwas prepared by techniques
  2. washThe mixture was then washed twice with 10 percent aqueous NaHCO3 and three times with distilled water
  3. customThe polymer was precipitated into MeOH
  4. customwas dried under vacuum at 110 degrees C
  5. waitfor 12 hours

Sources & evidence

ORD record
ord-6975bf8ebc0d45e58324ce01921c9a00
Source dataset
uspto-grants-1985_06
Patent number
US04525538

Reaction notes

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