Kobayashi, Shingo Pitet, Louis M. Hillmyer, Marc A. Regio- and Stereoselective Ring-Opening Metathesis Polymerization of 3-Substituted Cyclooctenes 3-Substituted <i>cis</i>-cyclooctenes (3<b>R</b>COEs, <b>R</b> = methyl, ethyl, hexyl, and phenyl) were synthesized and polymerized, and the polymers therefrom were hydrogenated to prepare model linear low density polyethylene (LLDPE) samples. The ring-opening metathesis polymerization (ROMP) of the 3<b>R</b>COEs using Grubbs' catalyst proceeded in a regio- and stereoselective manner to afford polyoctenamers [poly(3<b>R</b>COE)] exhibiting remarkably high head-to-tail regioregularity and high <i>trans</i>-stereoregularity. The overall selectivity increases with the increasing size of the <b>R</b> substituent. Hydrogenation of poly(3<b>R</b>COE)s afforded precision LLDPEs with <b>R</b> substituents on every eighth backbone carbon. polymer;backbone carbon;hydrogenated;metathesi;Polymerization;regioregularity;polymerized;precision LLDPEs;ROMP;R substituents;polymerization;sample;Substituted;density polyethylene;polyoctenamer;Grubb;methyl;Cyclooctene;Hydrogenation;R substituent;phenyl;stereoselective manner;Regio;3 RCOEs;catalyst;selectivity increases;Stereoselective;Metathesi;regio;hexyl;model 2011-04-20
    https://acs.figshare.com/articles/journal_contribution/Regio_and_Stereoselective_Ring_Opening_Metathesis_Polymerization_of_3_Substituted_Cyclooctenes/2661508
10.1021/ja201644v.s001