Development of bio-based shape memory polymer from plant oil

Research Project

Project/Area Number	17K05996
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Polymer/Textile materials
Research Institution	Teikyo University of Science & Technology (2019-2020) Osaka University (2017-2018)
Principal Investigator	Tsujimoto Takashi 帝京科学大学, 生命環境学部, 准教授 (90425041)
Project Period (FY)	2017-04-01 – 2021-03-31
Project Status	Completed (Fiscal Year 2020)
Budget Amount *help	¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000) Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000) Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords	高分子材料 / バイオベースポリマー / 形状記憶材料 / 植物油脂
Outline of Final Research Achievements	In this study, the bio-based shape memory materials were synthesized from epoxidized plant oil. The crosslinked plant oil-based materials were prepared from epoxidized soybean oil (ESO) by an acid-catalyzed curing in the presence of poly(vinyl chloride) (PVC). During the reaction, PVC scarcely reacted with ESO to form semi-interpenetrating network structure. The incorporation of the PVC components improved maximum stress and strain at break of the ESO-based network polymers. Furthermore, the polyESO/PVCs exhibited excellent shape memory properties, and the strain fixity and the recovery rate depended on the feed ratio of ESO and PVC. The shape memory-recovery behaviors were repeatedly practicable. The resulting materials are expected to contribute to the development of biodegradable intelligent materials.
Academic Significance and Societal Importance of the Research Achievements	再生可能資源であるバイオマスを利用し、形状記憶性を有するバイオベース複合材料を開発した。植物油脂を架橋することで得られるソフトネットワークの架橋密度を変化させることで形状記憶性の制御が可能であった。本研究はバイオマスプラスチックの機能化を実現するものであり、持続的に発展可能な社会の構築に貢献できるものとして期待される。