Phosphinimide-Ligated Half-Titanocene Dichloride for the Synthesis of Polynorbornenes with Controlled Molecular Weights and Widely Tunable Thermal and Mechanical Properties

Key Points

• The aim is to investigate a precatalyst for the controlled polymerization of norbornenes, targeting predictable molecular weight and useful properties.
• Utilized a phosphinimide-ligated half-titanocene dichloride as a precatalyst.
• Conducted coordination-insertion polymerization of norbornenes.
• Synthesized copolymers including 5-tetradecyl-2-norbornene.
• Achieved soluble polymers with predictable molecular weights.
• Synthesized copolymers with tunable thermal and mechanical properties.
• Demonstrated effective control over polymer characteristics.