2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Preparation of Polyethylene Glycole-Templated Silica Nanostructural Materials

O.N. Ruzimuradov, P.A. Sermon
University of Surrey, UK

Keywords:
polymer, silica, polyethylene glycol, nanocomposite

Abstract:
By combining the synthetic skills with the morphological expertise we report here that we are able to synthesize new polymer/SiO2 nanocomposites (and in general have developed the concepts needed to design rationally a range of new materials for a variety of applications). Using the sol-gel approach we produced a new generation of polymer-templated mesoporous silica materials with high pore parameters which obtained from TEOS as inorganic silica source and a nonionic surfactant polyethylene glycol (PEG) that is biodegradable. We prepare materials with extremely high surface area. The high interfacial area is means of efficient loading of surface-functional moieties. In addition, it is possible to create a hierarchical pore morphology (analogous to the lung) that permits facile transport to deeply buried sites. The prepared materials, powder with large pore volume, narrow pore distribution, and uniform pore structure can be used as a adsorbents, catalysts, thickening, reinforcing, and flatting agent, etc. in which functional groups decorate the internal surfaces of a porous monolith. The new nanocomposite materials will have designer selectivity, defined by (i) geometric (e.g. defined by framework pore sizes/shapes or local site accessibility, or (ii) the local prevailing chemistry. Both of these characteristics will define reactivity (i.e. their interactions with analytes and reactants).


Nanotech 2008 Conference Program Abstract