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http://dx.doi.org/10.7473/EC.2019.54.4.279

Synthesis of Biomass-derived Polyurethane by Chain Extender Type  

Sohn, Mi Hyun (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education)
Li, Xiang Xu (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education)
Cho, Ur Ryong (School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education)
Publication Information
Elastomers and Composites / v.54, no.4, 2019 , pp. 279-285 More about this Journal
Abstract
Bio-based polyester polyols were synthesized using esterification with azelaic acid, sebacic acid, and 1,3-propanediol. Polyurethanes were prepared using chain extenders (1,4-Butanediol, 1,3-Propanediol, and isosorbide) and 4,4'-diphenylmethane diisocyanate with a mixing ratio of 1:1:1.1. Subsequently, the properties of the polymers prepared using the different chain extenders were compared. The synthesis of polyurethane was confirmed by FT-IR, TGA, and GPC. The mechanical properties (hardness, ball rebound, and tensile strength) of the materials were analyzed using shore A tester, taber abrasion, and UTM. heat, chemical, and water resistances of the prepared materials were measured by comparing the tensile strengths according to external changes.
Keywords
bio-polyol; bio-polyurethane; castor oil; chain extender; mechanical properties;
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