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Neodymium Based Ziegler Catalysts - Fundamental Chemistry (Paperback, Softcover reprint of hardcover 1st ed. 2006)
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Neodymium Based Ziegler Catalysts - Fundamental Chemistry (Paperback, Softcover reprint of hardcover 1st ed. 2006)
Series: Advances in Polymer Science, 204
Expected to ship within 10 - 15 working days
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Even though Ziegler catalysts have been known for almost half a
century, rare earth metals (Ln), particularly neodymium (Nd)-based
Ziegler catalyst systems, only came into the focus of industrial
and academic research well afterthelargescaleapplicationoftitanium,
cobaltandnickelcatalystsystems.
Asadirectconsequenceofthelaterecognitionofthetechnologicalpotentialof
rareearthmetalZieglercatalysts,
thesesystemshaveattractedmuchattention. Considerable progress has
been made in this ?eld as a result of intensive workperformed
during the last fewyears. Worthmentioning is thestructural
identi?cation of a variety of Ln/Al heterobimetallic complexes and
the role of alkyl aluminum cocatalysts in molar mass control.
Furthermore, a deeper understanding ofthe polymerization mechanism,
suchas theliving character of neodymium-catalyzed diene
polymerization associated with the reversible transfer of living
polymer chains between Nd and Al, was revealed quite - cently. In
spite of the vast number of patents and publications mainly issued
duringthelastdecade,
acomprehensivereviewthatcoversthescienti?caswell as the patent
literature has been missing until now. In this volume we try to
review the available literature by two independent approaches to Nd
and Ln-catalyzed diene polymerizations. In the ?rst part of
thevolume, whichisentitled"Neodymium-Based
Ziegler/NattaCatalystsand their Application in Diene
Polymerization," a polymer chemist's view is given with strong
emphasis on Nd-based catalyst systems. Also technological and
industrialaspectsofNd-catalyzeddienepolymerizationsareaddressed.Inthe
secondpartofthevolume, whichisentitled"Rare-EarthMetalsandAluminum
Getting Close in Ziegler-type Organometallics," a more
organometallic p- spective isgivenandLn-based catalystsystems
areaddressed. Bythesynopsis of these different perspectives, the
reader will comprehend the complexity of Ln-based Ziegler catalyst
systems and their application to the polymerization of dienes. This
volume also gives a description ofthe evolution in Nd-catalyzed po-
merization of dienes from the early works to the current state of
the art.
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