Styrene → Prop-2-enenitrile--ethenylbenzene (1/1)

HRID 747394Notes

Reaction equation

HRID 747394 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[C:9](#[N:12])[CH:10]=[CH2:11].C(OS(C1C=CC=CC=1)(=O)=O)CCCCCCCCCCC.P([O-])([O-])([O-])=O.[Ca+2].P([O-])([O-])([O-])=O.[Ca+2].[Ca+2]>O>[CH2:11]=[CH:10][C:9]#[N:12].[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

6

Reactant 4

HCID 7501StyreneHCID 7855AcrylonitrileHCID 15900Dodecyl benzenesulfonateHCID 24456Tricalcium Phosphate

Product 1

HCID 62696Prop-2-enenitrile--ethenylbenzene (1/1)

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
85 °C

Procedure

A copolymer resin composed of styrene and acrylonitrile was prepared by suspension polymerization as follows. Two hundred parts by weight of water, 0.02 part by weight of dodecylbenzenesulfonate, and 1 part by weight of calcium phosphate were charged in an 8-L polymerization apparatus. After removal of oxygen by proper nitrogen substitution with stirring, the mixture was heated to 85° C. In the mixture was added 75 parts by weight of styrene, 25 parts by weight of acrylonitrile, and 0.8 part by weight of benzoyl peroxide at the same time, and the resulting mixture was stirred for five hours. To the resulting mixture was further added 0.8 part by weight of benzoyl peroxide, and the resulting mixture was stirred for five hours to terminate the reaction. A styrene-acrylonitrile copolymer resin was obtained by dehydration. The refraction index was 1.57.

Workup

  1. customwas prepared by suspension polymerization
  2. customAfter removal of oxygen by proper nitrogen substitution
  3. additionIn the mixture was added 75 parts by weight of styrene, 25 parts by weight of acrylonitrile, and 0.8 part by weight of benzoyl peroxide at the same time
  4. stirringthe resulting mixture was stirred for five hours
  5. additionTo the resulting mixture was further added 0.8 part by weight of benzoyl peroxide
  6. stirringthe resulting mixture was stirred for five hours
  7. customto terminate
  8. customthe reaction

Sources & evidence

ORD record
ord-9e8a1ecdb7c448088d379fd20accd19d
Source dataset
uspto-grants-2008_07
Patent number
US07396876B2

Reaction notes

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