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

HRID 2075012Notes

Reaction equation

HRID 2075012 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].CC(N=NC(C#N)(C)C)(C#N)C.P([O-])([O-])([O-])=O.[Ca+2].[Ca+2].[Ca+2].P([O-])([O-])([O-])=O>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 6547AzobisisobutyronitrileHCID 7501StyreneHCID 7855AcrylonitrileHCID 24456Tricalcium Phosphate

Product 1

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

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

75 parts by weight of styrene, 25 parts by weight of acrylonitrile, and 120 parts by weight of deionized water are mixed. To the mixture, 0.2 parts by weight of azobisisobutylonitrile (AIBN), 0.4 parts by weight of tricalcium phosphate and 0.2 parts by weight of mercaptan-containing chain transfer agent are added. The resultant solution is heated to 80° C. for 90 minutes and kept for 180 minutes. The resultant product is washed, dehydrated and dried. Styrene-acrylonitrile copolymer (SAN) in a powder form is then obtained. The styrene-acrylonitrile copolymer (SAN) has a weight average molecular weight (Mw) of about 80,000 to about 100,000.

Workup

  1. additionare added
  2. washThe resultant product is washed
  3. customdried

Sources & evidence

ORD record
ord-aa4df06ad5114fe7a1005228a48f23d7
Source dataset
uspto-grants-2011_04
Patent number
US07919548B2

Reaction notes

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