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Preparation of Polyethylene/Montmorillonite Nanocomposites Through in situ Polymerization Using a Montmorillonite‐Supported Nickel Diimine Catalyst
Author(s) -
Choi Yiyoung,
Shin Sang Young A.,
Soares João B. P.
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900643
Subject(s) - montmorillonite , nanocomposite , materials science , nickel , diimine , in situ polymerization , polymerization , thermal decomposition , polymer chemistry , catalysis , crystallinity , polymer , polyethylene , chemical engineering , composite material , chemistry , organic chemistry , metallurgy , engineering
PE/MMT nanocomposites were prepared through in situ polymerization using a nickel diimine catalyst supported on commercially available MMTs such as Cloisite Na + , Cloisite 30B, and Cloisite 93A. XRD patterns revealed that the layers of Cloisite 30B and Cloisite 93A were intercalated after treatment with TMA and the nickel diimine complex. The catalyst supported on Cloisite 30B showed high yields without additional activator and produced nanocomposites with high melting and decomposition temperatures. The thermal properties and crystallinity could be controlled by varying the clay content in the nanocomposite. The morphologies of the resulting particles and the dispersion of the MMT layers in the polymer matrix were characterized by SEM and TEM.