Microstructural Evolution of Melt Intercalated Polymer-Organically Modified Layered Silicates Nanocomposites

Chemistry of Materials

Volumn 8, Issue 11, 1996, Pages 2628-2635

  Vaia, Richard A ^a,b   Jandt, Klaus D ^a   Kramer, Edward J ^a   Giannelis, Emmanuel P ^a  

^a Cornell University   (United States)

^b AIR FORCE RESEARCH LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001220162     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm960102h     Document Type: Article

References (30)

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4. Vaia, R. A.; Giannelis, E. P., submitted to Macromolecules.
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7. For recent review of nanocomposites, see: Komarneni, S. J. Mater. Chem. 1992, 2, 1219.
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11. Messersmith, P. B.; Giannelis, E. P. J. Polym. Sci., Part A: Polym. Chem. 1995, 33, 1047.
12. 3 to describe the microstructural features of the OLSs. The silicate nominal particle (agglomerate) is comprised of an agglomeration of smaller oblong-shaped particles, referred to as primary particles. The primary particles consist of a compact face-to-face stacking or low-angle intergrowth of individual silicate crystallites (also known as tactoids). The crystallites consist of a coherent stacking of individual silicate layers.
13. Vaia, R. A.; Teukolsky, R. K.; Giannelis, E. P., Chem. Mater. 1994, 6, 1017.
14. Spunrr, A. R. Ultrastruct. Res. 1969, 26, 31.
15. Uncured Spurr epoxy and acrylic-based embedding formulations have been observed during embedding to intercalated OLS. Similar observations were reported in ref 16.
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22. Güven, N. In Hydrous Phyllosilicates; Bailey, S. W., Ed.; Mineralogical Society of America, Washington, DC, 1988; Reviews in Mineralogy, Vol. 19, pp 497-560.
23. 25 We assume the contribution to peak width due to instrumental broadening is constant for 2θ = 2-4°.
24. Dritis, V. A.; Tchoubar, C. X-ray Diffraction by Disordered Lamellar Structures; Springer-Verlag: New York, 1990; pp 21-22.
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26. The behavior of the basal reflections in Figure 1 is representative of polystyrene melt intercalation of F18 at different temperatures and molecular weights as depicted in ref 3. In general, the initial intercalated basal reflection is 10-30% wider than the unintercalated reflection, and its breadth is within 5-10% of the original unintercalated reflection by χ ∼ 0.2-0.4.
27. Schöllhorn, R. Physica 1980, 99B, 89.
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