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- W2361034080 abstract "The present work presents a study on the grafting of polyurethane onto chitosan in aqueous media.The effect of the amount of hydrophilic monomer on the water resistance of polyurethane was observed.Characterization of graft copolymers was performed by fourier transform infrared spectroscopy(FTIR),gel permeation chromatography(GPC),thermogravimetric analysis(TGA),differential scanning calorimetry(DSC),X-ray diffraction analysis(XRD),mechanical properties testing,and water resistance testing.TGA tests reveal that the thermal decomposition temperature of the copolymers increased significantly,being 34 ℃ higher than that of pure gelatin,while DSC measurements indicate that the glass transition temperature decreased with the introduction of polyurethane.Accordingly,the mechanical and anti-water absorption properties also proved to be enhanced greatly as evidenced by mechanical test and water absorptions data in which the copolymers containing 50% of polyurethane have highest elongation at break(325.6%),and lowest water absorption capacity(65%)." @default.
- W2361034080 created "2016-06-24" @default.
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- W2361034080 date "2011-01-01" @default.
- W2361034080 modified "2023-09-24" @default.
- W2361034080 title "Preparation and Characterization of Water-based Polyurethane/Gelatin Copolymers" @default.
- W2361034080 hasPublicationYear "2011" @default.
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