Azobisisobutyronitrile → HCID 23295550, compound

HRID 970259Notes

Reaction equation

HRID 970259 reaction equation
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1.[CH2:10]=[CH:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[C:18]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])(=[O:21])[CH:19]=[CH2:20].CC(N=NC(C#N)(C)C)(C#N)C>C(O)(C)C.O>[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[CH2:7])=[CH:4][CH:3]=1.[CH2:10]=[CH:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[C:18]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])(=[O:21])[CH:19]=[CH2:20]

Participants

7

Reactant 4

HCID 6547AzobisisobutyronitrileHCID 7501StyreneHCID 15458tert-Butyl acrylateHCID 624534-Vinylphenol

Product 1

HCID 23295550HCID 23295550, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 3776IsopropanolSolvent

Procedure

In 400 mL of isopropanol, 84.1 g of p-hydroxystyrene, 20.8 g of styrene and 12.8 g of tert-butyl acrylate were dissolved, then 14.1 g of azobisisobutylonitrile was added and the solution reacted at 80° C. for 6 hours under nitrogen gas flow. After the reaction, said reaction liquid was poured into 10 L of water for precipitation, followed by filtering off deposited crystal, drying under reduced pressure to obtain 95 g of poly(p-hydroxystyrene/styrene/tert-butyl acrylate) as a pale brown powder crystal. The copolymer obtained was named polymer 1. A composition ratio of p-hydroxystyrene unit, styrene unit and tert-butyl acrylate unit in polymer 1 was found to be about 7:2:1 from the measurement results by 13CNMR. Weight average molecular weight (Mw) of this copolymer was about 10,000 and distribution (Mw/Mn) thereof was about 1.9 from the measurement results by gel permeation chromatography using polystyrene as a standard.

Workup

  1. customthe solution reacted at 80° C. for 6 hours under nitrogen gas flow
  2. customAfter the reaction
  3. customreaction liquid
  4. filtrationby filtering off
  5. customdrying under reduced pressure

Sources & evidence

ORD record
ord-4d7a76ef02964892b586ac7834e67453
Source dataset
uspto-grants-2007_12
Patent number
US07312014B2

Reaction notes

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