Azobisisobutyronitrile → HCID 168686, compound

HRID 2254022Notes

Reaction equation

HRID 2254022 reaction equation
[C:1]([O:5][CH2:6][CH3:7])(=[O:4])[CH:2]=[CH2:3].[C:8]([O:12][CH2:13][CH2:14][CH2:15][CH3:16])(=[O:11])[CH:9]=[CH2:10].[C:17]([OH:21])(=[O:20])[CH:18]=[CH2:19].N(C(C)(C)C#N)=NC(C)(C)C#N.C(S)CCCCCCCCCCC>>[CH2:13]([O:12][C:8](=[O:11])[CH:9]=[CH2:10])[CH2:14][CH2:15][CH3:16].[CH2:6]([O:5][C:1](=[O:4])[CH:2]=[CH2:3])[CH3:7].[C:17]([OH:21])(=[O:20])[CH:18]=[CH2:19]

Participants

6

Reactant 5

HCID 6547AzobisisobutyronitrileHCID 6581Acrylic AcidHCID 81951-DodecanethiolHCID 8821Ethyl AcrylateHCID 8846Butyl Acrylate

Product 1

HCID 168686HCID 168686, compound

Conditions

Temperature
120 °C

Procedure

Polymerization was initiated with a solution of 21.7 g of ethyl acrylate, 50 g of butyl acrylate, 3 g of acrylic acid, 2 g of azo-bis-isobutyronitrile and 0.2 g of lauryl mercaptan in a reactor by slow heating, starting at 25° C. The polymerization started vigorously at 55° C. The main part of the polymerization was carried out between 100° and 120° C. by a slow addition of 250 g of the same monomer mixture over a period of two hours with external waterbath cooling. Since stirring becomes difficult at this stage, the material was removed from the reactor and heated for two additional hours at 120° C. The polymer material was highly viscous with comonomer proportions of 67:28:5.

Workup

  1. customPolymerization
  2. customstarting at 25° C
  3. customstarted vigorously at 55° C
  4. temperaturecooling
  5. customthe material was removed from the reactor

Sources & evidence

ORD record
ord-8c702ae8fe094d0f9e68a6ba6ff66490
Source dataset
uspto-grants-1993_08
Patent number
US05234730

Reaction notes

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