METHOD FOR THE PREPARATION OF COPOLYMERS OF ETHYLENE/NORBORNENE-TYPE MONOMERS WITH NICKEL CATALYSTS
申请人:THE B.F. GOODRICH COMPANY
公开号:EP0988330A1
公开(公告)日:2000-03-29
Use of a Combination Chain Transfer and Activating Agent to Control Molecular Weight and Optical Density of Pd Catalyzed Norbornene Polymers
申请人:Rhodes Larry F.
公开号:US20080242810A1
公开(公告)日:2008-10-02
A method of controlling the molecular weight of poly(cyclic) olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer.
Use Of A Combination Chain Transfer And Activating Agent To Control Molecular Weight And Optical Density Of Pd Catalyzed Norbornene Polymers
申请人:Rhodes Larry F.
公开号:US20110009578A1
公开(公告)日:2011-01-13
A method of controlling the molecular weight of poly(cyclic) olefin (norbornene-type) polymers and activating the polymerization thereof with a single material is provided. Such method include adding a chain transfer/activating agent to a mixture of monomer(s), catalyst, solvent and an optional cocatalyst and polymerizing the mixture to form a polymer. It is shown that the amount of chain transfer/activating agent in the mixture can serve to control the molecular weight of the resulting polymer, its percent conversion or both, and in some embodiments the optical density of the resulting polymer.