Unexpected <i>o</i>-aryl <i>t</i>Bu group effect on suppression of chain transfer in pyridine–imine Ni(<scp>ii</scp>) and Pd(<scp>ii</scp>) catalyzed ethylene (co)polymerization
Zhengpeng Yan, Wenping Zou, Shengyu Dai
Abstract
The polyethylene and ethylene/MA copolymers yielded by o-tert -butyl Ni( ii ) and Pd( ii ) complexes have molecular weights over an order of magnitude higher than those with other o -alkyl (Me, Et, iPr) Ni( ii ) or Pd( ii ) complexes.
Topics & Concepts
EthyleneImineAlkylPolymer chemistryChemistryPolyethyleneArylPyridinePolymerizationCatalysisCopolymerMedicinal chemistryChain transferOrganic chemistryPolymerRadical polymerizationOrganometallic Complex Synthesis and CatalysisCatalytic Alkyne ReactionsN-Heterocyclic Carbenes in Organic and Inorganic Chemistry