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TY - JOUR
AU - Stojanović, D.
AU - Orlović, A.
AU - Glišić, S. B.
AU - Marković, Smilja
AU - Radmilović, Velimir R.
AU - Uskoković, Petar S.
AU - Aleksić, Radoslav
PY - 2010
UR - http://dais.sanu.ac.rs/123456789/3427
AB - The objective of this study is to investigate and compare methods of nanosilica coating with γ-methacryloxypropyltrimethoxy (MEMO) silane using supercritical carbon dioxide and carbon dioxide-ethanol mixture. Characterization of grafted silane coupling agent on the nanosilica surface was performed by the infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The d50 value and particle size distribution were determined by laser particle size analyzer (PSA). The operating parameters of silanization process at 40 °C, such as the silica/silane weight ratio, the presence of ethanol, and the pressure, were found to be important for the successful coating of silica particles with minimum agglomeration. The results indicate that presence of ethanol in high-pressure carbon dioxide plays an important role in achieving successful deagglomeration of coated nanoparticles. Dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM) revealed that dispersion of the silica particles in the PMMA matrix and interfacial adhesion between silica particles and polymer matrix were enhanced, when silica nanoparticles treated with silane under high pressure of carbon dioxide and ethanol were used for the nanocomposite preparation. © 2010 Elsevier B.V. All rights reserved.
PB - Elsevier
T2 - Journal of Supercritical Fluids
T1 - Preparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanol
SP - 276
EP - 284
VL - 52
IS - 3
DO - 10.1016/j.supflu.2010.02.004
ER -
@article{
author = "Stojanović, D. and Orlović, A. and Glišić, S. B. and Marković, Smilja and Radmilović, Velimir R. and Uskoković, Petar S. and Aleksić, Radoslav",
year = "2010",
url = "http://dais.sanu.ac.rs/123456789/3427",
abstract = "The objective of this study is to investigate and compare methods of nanosilica coating with γ-methacryloxypropyltrimethoxy (MEMO) silane using supercritical carbon dioxide and carbon dioxide-ethanol mixture. Characterization of grafted silane coupling agent on the nanosilica surface was performed by the infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The d50 value and particle size distribution were determined by laser particle size analyzer (PSA). The operating parameters of silanization process at 40 °C, such as the silica/silane weight ratio, the presence of ethanol, and the pressure, were found to be important for the successful coating of silica particles with minimum agglomeration. The results indicate that presence of ethanol in high-pressure carbon dioxide plays an important role in achieving successful deagglomeration of coated nanoparticles. Dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM) revealed that dispersion of the silica particles in the PMMA matrix and interfacial adhesion between silica particles and polymer matrix were enhanced, when silica nanoparticles treated with silane under high pressure of carbon dioxide and ethanol were used for the nanocomposite preparation. © 2010 Elsevier B.V. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of Supercritical Fluids",
title = "Preparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanol",
pages = "276-284",
volume = "52",
number = "3",
doi = "10.1016/j.supflu.2010.02.004"
}
Stojanović D, Orlović A, Glišić SB, Marković S, Radmilović VR, Uskoković PS, Aleksić R. Preparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanol. Journal of Supercritical Fluids. 2010;52(3):276-284
Stojanović, D., Orlović, A., Glišić, S. B., Marković, S., Radmilović, V. R., Uskoković, P. S.,& Aleksić, R. (2010). Preparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanol.
Journal of Supercritical FluidsElsevier., 52(3), 276-284.
https://doi.org/10.1016/j.supflu.2010.02.004
Stojanović D., Orlović A., Glišić S. B., Marković Smilja, Radmilović Velimir R., Uskoković Petar S., Aleksić Radoslav, "Preparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanol" 52, no. 3 (2010):276-284,
https://doi.org/10.1016/j.supflu.2010.02.004 .
