Methods of synthesis for 1,cis‐9‐octadecadiene, 1,trans‐9‐octadecadiene, 1,cis‐9‐cis‐12‐octadecatriene, 1,9,12‐octadecatriene with 56% trans unsaturation, and several necessary intermediates have been described. The polymerization and copolymerization of these dienes and trienes as well as several long‐chain monoolefins and some branched chain olefins have been described. The octadecadienes yield soluble homopolymers. The octadecatrienes give only crosslinked polymers and there is evidence of bond migration. The catalyst system triisobutylaluminum‐titanium tetrachloride causes bond migration in 1‐octadecene.
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Marvel et al. (1961) studied this question.
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