Copolymerization of ethylene and styrene with the catalytic system Cp*TiMe3-B(C6F5)3 under suitable conditions affords a new polymer having a polyethylenic backbone with 4-phenyl-1-butyl branches as the main product. This unexpected result has been ascribed to the multi-site nature of the catalytic system, containing a species able to co-oligomerize ethylene and styrene to 6-phenyl-1-hexene (which was actually identified in the polymerization mixture), and another species able to copolymerize the latter with ethylene.
Titolo: | Synthesis of 4-phenyl-branched polyethylene from an ethylene-styrene feed by a half-titanocene catalyst |
Autori: | |
Data di pubblicazione: | 1999 |
Rivista: | |
Abstract: | Copolymerization of ethylene and styrene with the catalytic system Cp*TiMe3-B(C6F5)3 under suitable conditions affords a new polymer having a polyethylenic backbone with 4-phenyl-1-butyl branches as the main product. This unexpected result has been ascribed to the multi-site nature of the catalytic system, containing a species able to co-oligomerize ethylene and styrene to 6-phenyl-1-hexene (which was actually identified in the polymerization mixture), and another species able to copolymerize the latter with ethylene. |
Handle: | http://hdl.handle.net/11386/1061484 |
Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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