The effect of chlorine substituent(s) on the primary loss of a methyl radical from chlorinated veratroles (1,2-dimethoxybenzenes)

Effect of substituents at position 4 on

Effect of substituents at position 4 on the stereospecific polymerization of 1,3-diolefins. Polymers with a 1,2 isotactic structure from 4-methyl-1,3-pentadiene

✍ L. Porri; M.C. Gallazzi 📂 Article 📅 1966 🏛 Elsevier Science 🌐 English ⚖ 551 KB

Abstraet--4.Methyl-l,3-pentadiene has been polymerized by heterogeneous catalysts from AI(C2Hs) 3 and either TIC14, TIC13 or VCI3, to give polymers having almost exclusively 1,2 units, and showing crystallinity attributable to 1,2 isotactic sequences. Homogeneous systems from AI(C2Hs)3 and either a