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

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TechConnect Summit
Clean Technology 2008

Sol-gel Nanocomposite Poly (ethylene glycol /propylene glycol)-Oxides for Alkyl Phenol Ethoxylate Analysis and Control

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

Keywords:
sol-gel, PEG, PPG, alkyl phenol ethoxylates

Abstract:
A nanoengineered nanocomposite is a material composed of two or more components, the intent of which is to achieve better properties than can be obtained by either of the single homogeneous materials and has at least one defining dimension on a nm scale. Synergistic interactions between the two components at their interface can be used in nanoegineering such materials. In this work sol-gel alkoxide-derived SiO2 and TiO2 were prepared (with control of the (i) ratio of initial reactants, (ii) pH, (iii) temperature, (iv) time and (v) nature and concentration of catalysts) in the presence or absence of PEG or PPG that were chosen because they are crystallizable and have terminal hydroxyl groups that may hydrogen bond with the surface OH groups to form C – O -Si (Ti) covalent bonds with the oxide network. The affect of the oxides on the physical and chemical properties of the PEG or PPG has been studied by DSC and solid state NMR. The effect of the PEG or PPG modifiers on the oxide network has been followed by BET methods. The effect of these two-way interactions on the ability of such nanocomposites to adsorb, separate and control alkylphenols in water is also considered.


Nanotech 2008 Conference Program Abstract