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Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites
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| Zeitschriftentitel: | ChemCatChem |
|---|---|
| Personen und Körperschaften: | , , , , |
| In: | ChemCatChem, 5, 2013, 4, S. 966-976 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. |
|---|---|
| author |
Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. |
| spellingShingle |
Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. ChemCatChem Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites Inorganic Chemistry Organic Chemistry Physical and Theoretical Chemistry Catalysis |
| author_sort |
bento, a. |
| spelling |
Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. 1867-3880 1867-3899 Wiley Inorganic Chemistry Organic Chemistry Physical and Theoretical Chemistry Catalysis http://dx.doi.org/10.1002/cctc.201200639 <jats:title>Abstract</jats:title><jats:p>MCM‐41 micro‐ and nanoparticles are prepared and functionalized with silane coupling agents. These pristine and silane‐decorated mesoporous MCM‐41s are further used in the synthesis of MCM‐41/ethylene nanocomposites by in situ polymerization, utilizing either supported or non‐supported catalytic systems. The catalytic behavior of those systems is discussed, taking into consideration the effects of the particle size, surface characteristics, and functionalization. The results have shown that the initial surface state of MCM‐41 is of paramount importance to achieve high catalytic activity if a polymerization catalyst is to be supported. Functionalization changes the surface chemistry, thus, a positive or negative effect may be observed, depending on the previous features of the surface. The particle size of MCM‐41 and its functionalization affect its final dispersion within the polymeric matrix, this distribution is evaluated by SEM, TEM, and microhardness measurements.</jats:p> Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites ChemCatChem |
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Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_unstemmed |
Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_full |
Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_fullStr |
Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_full_unstemmed |
Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_short |
Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_sort |
functionalization of mesoporous mcm‐41 (nano)particles: preparation methodologies, role on catalytic features, and dispersion within polyethylene nanocomposites |
| topic |
Inorganic Chemistry Organic Chemistry Physical and Theoretical Chemistry Catalysis |
| url |
http://dx.doi.org/10.1002/cctc.201200639 |
| publishDate |
2013 |
| physical |
966-976 |
| description |
<jats:title>Abstract</jats:title><jats:p>MCM‐41 micro‐ and nanoparticles are prepared and functionalized with silane coupling agents. These pristine and silane‐decorated mesoporous MCM‐41s are further used in the synthesis of MCM‐41/ethylene nanocomposites by in situ polymerization, utilizing either supported or non‐supported catalytic systems. The catalytic behavior of those systems is discussed, taking into consideration the effects of the particle size, surface characteristics, and functionalization. The results have shown that the initial surface state of MCM‐41 is of paramount importance to achieve high catalytic activity if a polymerization catalyst is to be supported. Functionalization changes the surface chemistry, thus, a positive or negative effect may be observed, depending on the previous features of the surface. The particle size of MCM‐41 and its functionalization affect its final dispersion within the polymeric matrix, this distribution is evaluated by SEM, TEM, and microhardness measurements.</jats:p> |
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| author | Bento, A., Lourenço, J. P., Fernandes, A., Cerrada, M. L., Rosário Ribeiro, M. |
| author_facet | Bento, A., Lourenço, J. P., Fernandes, A., Cerrada, M. L., Rosário Ribeiro, M., Bento, A., Lourenço, J. P., Fernandes, A., Cerrada, M. L., Rosário Ribeiro, M. |
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| description | <jats:title>Abstract</jats:title><jats:p>MCM‐41 micro‐ and nanoparticles are prepared and functionalized with silane coupling agents. These pristine and silane‐decorated mesoporous MCM‐41s are further used in the synthesis of MCM‐41/ethylene nanocomposites by in situ polymerization, utilizing either supported or non‐supported catalytic systems. The catalytic behavior of those systems is discussed, taking into consideration the effects of the particle size, surface characteristics, and functionalization. The results have shown that the initial surface state of MCM‐41 is of paramount importance to achieve high catalytic activity if a polymerization catalyst is to be supported. Functionalization changes the surface chemistry, thus, a positive or negative effect may be observed, depending on the previous features of the surface. The particle size of MCM‐41 and its functionalization affect its final dispersion within the polymeric matrix, this distribution is evaluated by SEM, TEM, and microhardness measurements.</jats:p> |
| doi_str_mv | 10.1002/cctc.201200639 |
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| imprint | Wiley, 2013 |
| imprint_str_mv | Wiley, 2013 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1, DE-L229 |
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| spelling | Bento, A. Lourenço, J. P. Fernandes, A. Cerrada, M. L. Rosário Ribeiro, M. 1867-3880 1867-3899 Wiley Inorganic Chemistry Organic Chemistry Physical and Theoretical Chemistry Catalysis http://dx.doi.org/10.1002/cctc.201200639 <jats:title>Abstract</jats:title><jats:p>MCM‐41 micro‐ and nanoparticles are prepared and functionalized with silane coupling agents. These pristine and silane‐decorated mesoporous MCM‐41s are further used in the synthesis of MCM‐41/ethylene nanocomposites by in situ polymerization, utilizing either supported or non‐supported catalytic systems. The catalytic behavior of those systems is discussed, taking into consideration the effects of the particle size, surface characteristics, and functionalization. The results have shown that the initial surface state of MCM‐41 is of paramount importance to achieve high catalytic activity if a polymerization catalyst is to be supported. Functionalization changes the surface chemistry, thus, a positive or negative effect may be observed, depending on the previous features of the surface. The particle size of MCM‐41 and its functionalization affect its final dispersion within the polymeric matrix, this distribution is evaluated by SEM, TEM, and microhardness measurements.</jats:p> Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites ChemCatChem |
| spellingShingle | Bento, A., Lourenço, J. P., Fernandes, A., Cerrada, M. L., Rosário Ribeiro, M., ChemCatChem, Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites, Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Catalysis |
| title | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_full | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_fullStr | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_full_unstemmed | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_short | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| title_sort | functionalization of mesoporous mcm‐41 (nano)particles: preparation methodologies, role on catalytic features, and dispersion within polyethylene nanocomposites |
| title_unstemmed | Functionalization of Mesoporous MCM‐41 (Nano)particles: Preparation Methodologies, Role on Catalytic Features, and Dispersion Within Polyethylene Nanocomposites |
| topic | Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Catalysis |
| url | http://dx.doi.org/10.1002/cctc.201200639 |