Ring-Opening Metathesis Polymerization of Norbornene Using an MTO Catalyst

Ring-Opening Metathesis Polymerization of Norbornene Using an MTO Catalyst 

The results of the polymerizations are summarized in Table 8.4. Polymerizations conducted in perfluorodecaUne result in small floating agglomerated polymer particles, whereas one chunk of rubber-like polymer has been obtained in the polymerization in CO2. During the polymerization of norbornene in chlorobenzene, a viscous gel is formed. 

Broad molecular-weight distributions are observed in all media. The number average molecular weight and turnover numbers are much lower in SCCO2 and 

Polymerization of Olefins in Supercritical CO2 Using Brookhart Catalyst 

To explore the possibilities of olefin polymerization in SCCO2, several monomer and catalyst systems have been investigated. Initially, the proof of principle was established by the polymerization of 1-hexene using the Brookhart catalyst in SCCO2. Subsequently, the polymerization of ethylene was studied in detail. Finally, the copolymerization of ethylene with methyl acrylate was assessed. 

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