Azobisisobutyronitrile → Styrene

HRID 1393823Notes

Reaction equation

HRID 1393823 reaction equation
[C:1]1(=O)[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.[CH3:8][C:9]1(C)N([O])[C:13]([CH3:17])(C)[CH2:12][CH2:11][CH2:10]1.CC(N=NC(C#N)(C)C)(C#N)C>>[CH2:1]=[CH:2][C:3]1[CH:4]=[CH:11][CH:10]=[CH:9][CH:8]=1.[CH2:11]([O:6][C:4](=[O:5])[CH:3]=[CH2:2])[CH2:12][CH2:13][CH3:17]

Participants

5

Reactant 3

HCID 6547AzobisisobutyronitrileHCID 7923Maleic Anhydride2×HCID 2724126Tempo

Product 2

HCID 7501StyreneHCID 8846Butyl Acrylate

Conditions

Temperature
135 °C

Procedure

Incorporation of maleic anhydride into an emulsion aggregation particle at the bulk polymerization step. A stock solution of styrene (390 ml) and butylacrylate (110 ml) was prepared and to 400 ml was added TEMPO (3.12 g 0.02 mole) and vazo 64 initiator (2.0 g, 0.0125 mole). This was heated under a nitrogen atmosphere to 135° C. (bath temperature) and then added to it dropwise a solution of maleic anhydride (9.8 g) in 100 mL, of the styrene/butylacrylate stock solution that had been deoxygenated using nitrogen. The addition was done over a 30 minute period after which it was stinted for 5 more minutes and then cooled to afford a poly(styrene/maleic anhydride-b-styrene/butylacrylate) (Mn=4,990 with PD=1.23) solution in styrene/butylacrylate monomer.

Workup

  1. customof the styrene/butylacrylate stock solution that had been deoxygenated
  2. additionThe addition
  3. temperaturecooled

Sources & evidence

ORD record
ord-c63c4de0f64a4e009cb0c7de4f905c4f
Source dataset
uspto-grants-2008_03
Patent number
US07345810B2

Reaction notes

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