Research Center for Polymer Materials;
School of Materials Science and Engineering;
Changchun University of Science and Technology;
Changchun 130022;
China;
Key Laboratory of Rubber-Plastics;
Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics;
Qingdao University of Science&Technology;
Qingdao 266061;
China;
Division of Applied Chemistry;
Faculty of Engineering;
Hokkaido University;
Sapporo;
Hokkaido 060-8628;
Japan;
Polynorbornene; Salicylaldiminate ligand; Vinyl polymerization;