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- W2556668038 abstract "Hyperbranched thermosetting polyurethanes have been prepared by pre- polymerization technique using poly(e-caprolactone) diol (PCL) as macroglycol, monoglyceride of Mesua ferrea l. seed oil as chain extender, and glycerol as the trifunctional polyol with toluene diisocyanate (TDI) followed by crosslinking with epoxy resin in presence of poly(amido amine) hardener as reported earlier. Similarly, the conventional resinous polyurethane thermoset was prepared by using monoglyceride of the same oil with same isocyanate and polyethylene glycol, and cured by the same system as reported earlier. These polyurethanes were used to prepare PU/clay nanocomposites using different doses of organically modified nanoclay by ex-situ solution technique using industrially used solvent, xylene. The formation of nanocomposites with well-dispersed clay layers is confirmed from FTIR, XRD and SEM studies. Significant improvement of mechanical, chemical and thermal properties of these nanocomposites compared to pristine polymers in both the cases was observed. The results confirmed the advantages of using hyperbranched polyurethane over the conventional polyurethane resin." @default.
- W2556668038 created "2016-11-30" @default.
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- W2556668038 creator A5069317287 @default.
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- W2556668038 date "2009-01-01" @default.
- W2556668038 modified "2023-09-26" @default.
- W2556668038 title "VEGETABLE OIL BASED HYPERBRANCHED AND CONVENTIONAL RESINOUS POLYURETHANE/CLAY THERMOSETTING NANOCOMPOSITES" @default.
- W2556668038 hasPublicationYear "2009" @default.
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