%0 Journal Article
%A Kobayashi, Shingo
%A Pitet, Louis M.
%A Hillmyer, Marc A.
%D 2011
%T Regio- and Stereoselective Ring-Opening Metathesis Polymerization of 3-Substituted Cyclooctenes
%U https://acs.figshare.com/articles/journal_contribution/Regio_and_Stereoselective_Ring_Opening_Metathesis_Polymerization_of_3_Substituted_Cyclooctenes/2661508
%R 10.1021/ja201644v.s001
%2 https://ndownloader.figshare.com/files/4321954
%K polymer
%K backbone carbon
%K hydrogenated
%K metathesi
%K Polymerization
%K regioregularity
%K polymerized
%K precision LLDPEs
%K ROMP
%K R substituents
%K polymerization
%K sample
%K Substituted
%K density polyethylene
%K polyoctenamer
%K Grubb
%K methyl
%K Cyclooctene
%K Hydrogenation
%K R substituent
%K phenyl
%K stereoselective manner
%K Regio
%K 3 RCOEs
%K catalyst
%K selectivity increases
%K Stereoselective
%K Metathesi
%K regio
%K hexyl
%K model
%X 3-Substituted cis-cyclooctenes (3RCOEs, R = 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 3RCOEs using Grubbs' catalyst proceeded in a regio- and stereoselective manner to afford polyoctenamers [poly(3RCOE)] exhibiting remarkably high head-to-tail regioregularity and high trans-stereoregularity. The overall selectivity increases with the increasing size of the R substituent. Hydrogenation of poly(3RCOE)s afforded precision LLDPEs with R substituents on every eighth backbone carbon.
%I ACS Publications