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New Polyolefin‐Nanocomposites by In Situ Polymerization with Metallocene Catalysts
Author(s) -
Scharlach Katrin,
Kaminsky Walter
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850102
Subject(s) - polyolefin , tacticity , materials science , polypropylene , nanocomposite , metallocene , propene , polymerization , in situ polymerization , nanoparticle , polymer chemistry , catalysis , chemical engineering , crystallization , composite material , polymer , organic chemistry , chemistry , nanotechnology , layer (electronics) , engineering
Summary: Polypropylene‐nanocomposites were prepared by in‐situ polymerization with the catalysts systems rac[Et(IndH 4 ) 2 ]ZrCl 2 , Me 2 Si(Flu)(Ind)ZrCl 2 and rac[Me 2 Si(2‐Me‐4‐(1‐Naph)Ind) 2 ]ZrCl 2 . The type and size of the nanoparticles and the concentration of the propene were varied. The activity is independent of the type and the size of the filler. It was observed that the filler contents in the polypropylene‐nanocomposites depend on the catalysts system used. The morphology results using TEM revealed that the nanoparticles are uniformly distributed in the isotactic polypropylene matrix. Additionally, the melting points, glass temperatures and crystallization temperatures changed with the amount of the fillers.