[CH2:1]([CH:13]1[CH2:18][CH:17]2[CH2:19][CH:14]1[CH:15]=[CH:16]2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].[CH2:20]=[CH:21][CH2:22][CH2:23][CH2:24][CH3:25].[I-].C([Al+]CC)C.C(CN)O>C1C=CC=CC=1>[CH2:1]([CH:13]1[CH2:18][CH:17]2[CH2:19][CH:14]1[CH:15]=[CH:16]2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH3:12].[CH2:20]=[CH:21][CH2:22][CH2:23][CH2:24][CH3:25]50 ml dry benzene cosolvent, 5 ml 5-dodecyl-2-norbornene, 2 ml of the 1-hexene solution and 0.6 ml of the diethylaluminum iodide solution were charged to a dry, nitrogen-purged 7 oz. bottle with shaking. 0.75 ml of the MoCl5 solution was charged last, and the bottle was shaken. Polymerization occurred rapidly, and after about 1 hour the reaction was shortstopped with ethanolamine and Solution A. The polymer was recovered by coagulating, filtering, and vacuum drying and found to be a solid, ring-opened 5-dodecyl-2-norbornene/1-hexene copolymer having a DSV (as defined heretofore) of about 1.23.
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