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Effect of different preparation routes on the structure and properties of rigid polyurethane‐layered silicate nanocomposites
Author(s) -
Woo Tim,
Halley Peter,
Martin Darren,
Kim Dae Su
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24787
Subject(s) - nanocomposite , materials science , polyurethane , fourier transform infrared spectroscopy , stoichiometry , silicate , morphology (biology) , polymerization , chemical engineering , ultimate tensile strength , polymer , composite material , polymer chemistry , chemistry , organic chemistry , biology , engineering , genetics
To identify the effect of reactive preparation on the structure and properties of rigid polyurethane (PU)‐layered silicate nanocomposite, a range of nanocomposites were prepared by combining the various precursors in different sequences. The morphology of the samples was characterized by XRD and TEM. Tensile properties and dynamic mechanical thermal properties were measured. The reactions between the layered silicates and PU precursors were monitored via FTIR to gain an understanding of the participation of nanofiller in the polymerization reaction, and the impact of this on system stoichiometry. The XRD and TEM results provided evidence that morphology can differ significantly if different synthesis methods are used. However, the mechanical properties are dominated by the stoichiometry imbalance induced by the addition of the layered silicates. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2894–2903, 2006