A unique development in metallocene catalysis is the preparation of polyethylene with a long chain branching molecular structure by using a catalyst with constrained ligand geometry. The long chain branching polyethylene (LCBPE) existing in the PE product shows many unique rheological properties such as higher shear rates. A new method that can be used to prepare long chain branched PP with a relatively well-defined molecular structure was reported. The long chain branching structure is strongly supported by the formation of imide linkages and the reduction of overall hydrodynamic volume.
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry