Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2019 / V.31,no.3,Sept Title Preparation and Comparison the Physical Properties of Polyurethane-Urea Using Biomass Derived Isosorbide Authors Ji-Hyeon Park, Jong-Seung Park, Pil-Jun Choi1, Jae-Wang Ko1, Jae-Yeon Lee1 and Suk-Hun Sur1* Institution/Affiliations Pusan National University, 1Korea Institute of Footwear and Leather Technology Pages/Total page pp.165 ~ 176 / 12 Language Korean Abstract Abstract Polyurethane-ureas(PUUs) were prepared from 4,4'-methylenebis(cyclohexyl isocyanate) and various diols including isosorbide. Isosorbide is starch-derived monomer that exhibit a wide range of glass transition temperature and are therefore able to be used in many applications. PUU was synthesized by a pre-polymer polymerization using a catalyst. Successful synthesis of the PUU was characterized by fourier transform-infrared spectroscopy. Thermal properties were determined by differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical analysis. It was found that by tuning isosorbide content in the resin, their glass transition temperature(Tg) slightly decreased. Physical properties were also determined by tensile strength and X-ray diffraction. There is no significant differences between petroleum-derived diol and isosorbide in XRD analysis. Moreover, their physical and optical properties were determined. The result showed that the poly(tetramethylene ether glycol)/isosorbide-based PUU exhibited enhanced tensile strength, transmittance, transparency and biodegradability compared to the existing diols. After 11 weeks composting, the biodegradability of blends increased in ISB-PUU. The morphology of the fractured surface of blend films were investigated by scanning electron microscopy. Keywords Keywords isosorbide, polyurethane, biopolymer, biodegradability, coating Download   Reference