期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 205, 期 6, 页码 737-742出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.200300206
关键词
copolymerization; cyclization; glass transition; lanthanide metallocene catalysts
Ethylene and butadiene were copolymerized with a silylene-bridged bis(fluorenyl) complex {[Me2Si(C13H8)(2)]-NdCl} (1) in combination with various alkylating agents (BuLi/AlH(iBu)(2), (Bu)MgCl, Mg(Bu)(Oct)). Copolymers have a unique microstructure since they contain 1,2-cyclohexane rings and unsaturations along the polymer chain. An intramolecular mechanism was proposed for the formation of six-membered rings. The influence of these cyclic structures on thermal properties of the copolymers has been investigated.
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