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Inorganic–organic elastomer nanocomposites from integrated ellipsoidal silica-coated hematite nanoparticles as crosslinking agents

  • Sánchez-Ferrer, Antoni ETH Zurich, Institute of Food, Nutrition & Health, Food & Soft Materials Science Group, Zurich, Switzerland
  • Reufer, Mathias Adolphe Merkle Institute and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Mezzenga, Raffaele ETH Zurich, Institute of Food, Nutrition & Health, Food & Soft Materials Science Group, Zurich, Switzerland
  • Schurtenberger, Peter Adolphe Merkle Institute and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
  • Dietsch, Hervé Adolphe Merkle Institute and Fribourg Center for Nanomaterials, University of Fribourg, Switzerland
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    14.04.2010
Published in:
  • Nanotechnology. - 2010, vol. 21, no. 18, p. 185603
English We report on the synthesis of nanocomposites with integrated ellipsoidal silica-coated hematite (SCH) spindle type nanoparticles which can act as crosslinking agents within an elastomeric matrix. Influence of the surface chemistry of the hematite, leading either to dispersed particles or crosslinked particles to the elastomer matrix, was studied via swelling, scattering and microscopy experiments. It appeared that without surface modification the SCH particles aggregate and act as defects whereas the surface modified SCH particles increase the crosslinking density and thus reduce the swelling properties of the nanocomposite in good solvent conditions. For the first time, inorganic SCH particles can be easily dispersed into a polymer network avoiding aggregation and enhancing the properties of the resulting inorganic–organic elastomer nanocomposite (IOEN).
Faculty
Faculté des sciences et de médecine
Department
AMI - Soft Nanoscience
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/301623
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