Azobisisobutyronitrile → Isoprene acrylonitrile

Participants

Reaction Conditions

Reaction Steps

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.

Provenance & Evidence