The present invention deals with the development of new homogeneous catalytic systems for the synthesis of functionalized polyolefins featuring the polar vinyl monomer into the main polymer chain.
Currently, the two technologies applied for the industrial production of functionalized polyolefins are:
i. radical polymerization and
ii. post-polymerization functionalization.
Both technologies are based on radical processes that require high temperature (473 K) and pressure (3000 bar of ethylene), thus implying high energy consumption, low cost efficiency and poor control over the macromolecule structure.
The new homogeneous catalytic system developed within this invention enables the production of functionalized polyolefins under very mild reaction conditions, temperature of 308 K and ethylene pressure of 2.5 bar, with a high control of the macromolecule architecture.
Description of the technology
The new homogeneous catalytic system developed within this invention includes an organometallic cationic palladium(II) (Pd(II)) complex and a specific solvent. No co-catalysts or other additives are added to the catalytic mixture.
The main improvements with respect to the currently applied technologies are related to:
1. very mild reaction conditions of the catalytic process, i.e. operative temperature 308 K, ethylene pressure 2.5 bar (currently applied reaction conditions: temperature 473 K, ethylene pressure 3000 bar);
2. fine control over the macromolecule structure (current technology: no control);
3. incorporation of the polar monomer in low amount and into the main polymer chain.
Specifications
Current development status
Experimental technologies
Applications
The industrial application of the present invention deals with the synthesis of functionalized polyolefins with the polar monomer inserted into the main chain, under very mild reaction conditions and with a high control of the architecture of the produced macromolecules. Currently, the two technologies applied for the industrial production of functionalized polyolefins are i. radical polymerization and ii. post-polymerization functionalization. Both technologies are based on radical processes that require high temperature (473 K) and pressure (3000 bar of ethylene), thus implying high energy consumption, low cost efficiency and poor control over the macromolecule structure. The new homogeneous catalytic system developed within this invention makes feasible the production of functionalized polyolefins under very mild reaction conditions, temperature of 308 K and ethylene pressure of 2.5 bar, with a high control of the macromolecule architecture.
Desired business relationship
Patent licensing
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