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|Title:||Synthesis and Characterization of Zinc-containing Polyurethane-Urea/Clay Nanocomposites|
|Keywords:||Metal-containing polyurethane-urea;clay nanocomposites|
|Citation:||J. Sci. Res. Chula. Univ. 2009;34(1):37-45.|
|Abstract:||Zinc-containing polyurethane-urea/organoclay nanocomposites with varying contents of organophilic bentonite (OBNH) were prepared by solution intercalation. OBNH was obtained through an ion-exchange reaction of bentonitewith oleylmethylbis (2-hydroxyethyl) ammonium chloride. Zinc-containing polyurethane-ureas were synthesized by reacting hexadentate Schiff base zinc complexes with isocyanate-terminated prepolymers. The successful attainment of intercalated nanocomposites was confirmed by X-raydiffraction (XRD) and transmission electron microscopy (TEM) analysis. Thermogravimetric analysis (TGA) results indicated that at high temperatures (300 – 1000°C) the Zinc-containing polyurethane-urea/organoclay nanocomposites had a lower % weight loss than Zinc-containing polyurethane-urea prepared without organoclay.|
|Appears in Collections:||Physics: National Journal Publications|
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