Citation: Yong-liang Zhu, Bin Wang, Jian Yu, Zhao-xia Guo. A ONE-STEP SURFACE MODIFICATION PROCEDURE TO PEG-GRAFTED NANO-TITANIA[J]. Chinese Journal of Polymer Science, ;2007, 25(3): 291-296. shu

A ONE-STEP SURFACE MODIFICATION PROCEDURE TO PEG-GRAFTED NANO-TITANIA

Received Date: 6 June 2006
Revised Date: 10 July 2006

PEG (Polyethylene Glycol)-grafted nano-titania has been obtained in a one-step procedure using hexamethylene diisocyanate as the coupling agent and dibutyltin dilaurate as the catalyst in toluene at 80C and characterized qualitatively by FTIR and quantitatively by elemental analysis and thermogravimetric analysis. A comparison of nano-titania with two other commonly used inorganic nanoparticles, nano-silica and nano-alumina is made, revealing that reactivity order is nano-silica nano-alumina nano-titania in view of PEG grafting. Possible mechanism of PEG grafting is also discussed.
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