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Ring-opening metathesis polymerization of 5,6-bis(chloromethyl)-norbornene by tungsten(II) and molybdenum(II) complexes.
Autorzy
Rok wydania
2002
Czasopismo
Numer woluminu
81
Strony
157-161
DOI
10.1023/A:1016512619727
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The reaction of endo,endo-5,6-bischloromethyl)bicyclo[2.2.1]hept-2-ene in the presence of seven-coordinate tungstenII) andmolybdenumII) complexes of the type [MClM0Cl3)CO)3NCMe)2]M0W, Mo; MSn, Ge) leads to ring-opening metathesispolymerization and to the formation of high-molecular-weight soluble polymers with dispersity index in the range 1.4±2.0 and numberaverage molecular weights in the range 300 000±790 000 g molÿ1. The geometric structure of these polymers was determined by means of1H- and13C-NMR spectroscopy. Molybdenum catalysts gave polymers with lowercisvinylene content 20±50%), whereas tungstencatalysts gave polymers with highercisvinylene content 84±95%)
Słowa kluczowe
metathesis polymerization of norbornene, tungstenII) catalyst, molybdenumII) catalyst, polymer structure
Adres publiczny
http://doi.org/10.1023/A:1016512619727
Strona internetowa wydawcy
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