Azobisisobutyronitrile → HCID 168686, compound

HRID 2254023Notes

Reaction equation

HRID 2254023 reaction equation
[CH2:1]([O:3][C:4](=[O:7])[CH:5]=[CH2:6])[CH3:2].[CH2:8]([O:12][C:13](=[O:16])[CH:14]=[CH2:15])[CH2:9][CH2:10][CH3:11].[C:17]([OH:21])(=[O:20])[CH:18]=[CH2:19].N(C(C)(C)C#N)=NC(C)(C)C#N.C(S)CCCCCCCCCCC>>[CH2:8]([O:12][C:13](=[O:16])[CH:14]=[CH2:15])[CH2:9][CH2:10][CH3:11].[CH2:1]([O:3][C:4](=[O:7])[CH:5]=[CH2:6])[CH3:2].[C:17]([OH:21])(=[O:20])[CH:18]=[CH2:19]

Participants

6

Reactant 5

HCID 6547Azobisisobutyronitrile2×HCID 6581Acrylic Acid2×HCID 81951-Dodecanethiol2×HCID 8821Ethyl Acrylate2×HCID 8846Butyl Acrylate2×

Product 1

HCID 168686HCID 168686, compound

Procedure

A starting solution of 45 g of ethylacrylate, 45 g of butylacrylate, 5 g of acrylic acid, 0.5 g of azo-bis-isobutyronitrile and 0.35 g of lauryl mercaptan was added in 5 portions to a stirred reaction kettle at a kettle temperature of 70° C. Each portion was only added after an exotherm had indicated that the previous portion had reacted. The reaction was continued over a period of three hours at a temperature between 80° and 105° C. with a solution of 442 g of ethylacrylate, 442 g of butylacrylate, 44 g of acrylic acid, 50 g of azo-bis-isobutyronitrile and 6.1 g of lauryl mercaptan. Because of the high viscosity of the product, stirring in the reaction vessel becomes difficult. The polymer material was removed from the reactor and heated without stirring for 2 hours at 120° C. The polymer material was rubbery with comonomer proportions of 47.6:47.6:4.8.

Workup

  1. additionEach portion was only added after an exotherm
  2. customhad reacted
  3. customThe polymer material was removed from the reactor
  4. temperatureheated
  5. stirringwithout stirring for 2 hours at 120° C

Sources & evidence

ORD record
ord-29a5eee7fbc84d3cac25ef41366814b8
Source dataset
uspto-grants-1993_08
Patent number
US05234730

Reaction notes

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