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Control of internal (2D and 3D hexagonal) mesostructure and particle morphology of spherical mesoporous silica particles using the emulsion and solvent evaporation (ESE) method
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
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2009 (English)In: Microporous and Mesoporous Materials, ISSN 1387-1811, E-ISSN 1873-3093, Vol. 120, no 3, 359-367 p.Article in journal (Refereed)
Abstract [en]

In this study we demonstrate the opportunities controlling internal structure as well as exterior morphology of surfactant templated mesostructured materials through the newly developed emulsion and solvent evaporation (ESE) method. In particular, we consider the control of synthesis temperature and map the influence upon both internal structure and surface morphology of particles templated by the temperature sensitive Pluronic block copolymer F127. Furthermore, we vary compositions, by adding poly(propylene glycol) acting as a swelling agent, as well as by controlling the moisture content. Both of these are having an impact on the internal mesostructure as well as the pore size. Apart from probing internal structure by scattering techniques, the accessibility of the mesoscopic pores of these materials are investigated by measuring the adsorption of a cationic dye, Janus Green B, into the materials. This method shows that accessibility varies dramatically with internal structure. Further, by carefully controlling the moisture content when using the cationic surfactant C16TAB as template, a well ordered 3D hexagonal closed packed (P63/mmc) material with large surface area as well as pore volume was prepared. This further indicates the versatility of the new preparation technique.

Place, publisher, year, edition, pages
2009. Vol. 120, no 3, 359-367 p.
Keyword [en]
ESE method, mesoporous materials, spherical particles, expanded pores, pluronic F127, C16TAB, morphology control, poly(propylene glycol), 3D hexagonal, P63/mmc
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27313DOI: 10.1016/j.micromeso.2008.12.002OAI: oai:DiVA.org:ri-27313DiVA: diva2:1054317
Note
A1976Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • en-US
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