Azobisisobutyronitrile → Isoprene acrylonitrile

HRID 595624Notes

Reaction equation

[C:1](#[N:4])[CH:2]=[CH2:3].[CH2:5]=[CH:6][C:7](=[CH2:9])[CH3:8].N(C(C)(C)C#N)=NC(C)(C)C#N>C1(C)C=CC=CC=1>[CH2:5]=[CH:6][C:7](=[CH2:8])[CH3:9].[C:1](#[N:4])[CH:2]=[CH2:3]

Participants

Conditions

Temperature: 80 °C

Procedure

Under nitrogen atmosphere, 263 parts of toluene, 53.0 parts of acrylonitrile and 68.2 parts of isoprene were introduced into a 30 mL glass reaction vessel, and 0.33 part of azobisisobutyronitrile was further added thereto, and stirred under heating at 80° C. After reaction for 15 hours, the same post-treatment as in Example 1 was carried out to give a random (isoprene/acrylonitrile) copolymer. The conversion rate of isoprene was 72% and the conversion rate of acrylonitrile was 60%. The molecular weight in terms of the polystyrene of the random (isoprene/acrylonitrile) polymer obtained was Mw=35,200, Mn=12,300 and Mw/Mn=2.86. The results of 1H-NMR analysis of the random (isoprene/acrylonitrile) copolymer obtained show that the polymer has no halogen at a terminal of the polymer chain.

Workup

additionwas further added
customAfter reaction for 15 hours

Sources & evidence

ORD record: ord-6227d923dff2414cbb582ca943110f09
Source dataset: uspto-grants-2016_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09243100B2

Reaction notes

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