[CH2:1]=[CH:2][C:3](=[CH2:5])[CH3:4].[CH2:6]=[CH:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[Li]CCCC>CCCCCCC>[CH2:1]=[CH:2][C:3](=[CH2:4])[CH3:5].[CH2:6]=[CH:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1One operates under the same polymerization conditions in 250 cc. Steinie bottles, in heptane medium (123 g.) with 9.24 g. of isoprene and 3.08 g. of styrene (25% referred to the isoprene). Copolymerization is effected for 2 hours at 70° C. in the presence of 50 × 10-6 moles of active n-BuLi.
読み込み中…