Assoc. Prof. Kaneko and Prof. Ebitani at the School of Materials Science have developed high heat-resistance biopolyetsters with the highest mechanical strength in the world
High heat-resistance biopolyetsters with the highest mechanical strength in the world have been developed to lead to lightening the vehicle weight. As seen in a breaking issue of Adv. Funct. Mater (IF=8.49), researchers from the laboratories of Assoc. Prof. Tatsuo Kaneko and Prof. Kohki Ebitani at the School of Materials Science have found the new calalytic ability of hydrotalcite for acidolysis polymerization of acetylated polyphenols, and then the aromatic polyesters having well-defined structures were successfully prepared. The biopolyesters showed a highly-efficient auto-orientation behavior on the glass surface. As a consequent, the oriented bioresins reinforced by aligned glass fibers were prepared, which showed a mechanical strength of 145MPa, a Young's modulus of 10 GPa, and a heat-resintance of 305℃. The next challenge is to prepare higher performance bioplastics than these,aiming to metal-alternation by renewable biomaterials.
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