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Preparation of polyethylene/layered silicate nanocomposites using in situ polymerization approach

Ramazani Saadatabadi, A ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1002/masy.200851410
  3. Publisher: 2008
  4. Abstract:
  5. In this paper, preparation of polyethylene/clay nanocomposites (PECNC) by in situ Ziegler-Natta catalyst polymerization was investigated. A Ziegler-Natta catalyst was first supported on montmorillonite (MMT) type clay and subsequently used for polymerizing ethylene. Clay and clay supported catalyst were characterized by Fourier transmission infrared and ICP method. X-ray diffraction (XRD) and transmission electron microscopy results show that silicate layers of the mineral clay in prepared nanocomposites were intercalated and exfoliated in the polymeric matrix. Differential scanning calorimetry results show that the prepared nanocomposites have higher crystallization temperature than pure polyethylene. Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA
  6. Keywords:
  7. Catalysis ; Catalysts ; Chemical reactions ; Differential scanning calorimetry ; Ethylene ; Metallic matrix composites ; Monomers ; Nanocomposites ; Polymer matrix composites ; Polymerization ; Polymers ; Silica ; Silicate minerals ; Silicates ; Thermoplastics ; X ray analysis ; Crystallization temperatures ; Fourier ; In situ polymerisation ; Mineral clays ; Polymeric matrixes ; Pure polyethylenes ; Silicate layers ; Silicate nanocomposites ; Supported catalysts ; X-ray diffractions ; Clay minerals
  8. Source: Macromolecular Symposia ; Volume 274, Issue 1 , December , 2008 , Pages 65-71 ; 10221360 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/masy.200851410