Deriving piezoelectric properties from the threaded α-cyclodextrins in the highly flexible supramolecular elastomer
발표자
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초록
내용
Cellulose is a polysaccharide of a linear chain structure composed of glucose units. It can form a non-symmetry monoclinic crystal structure by hydrogen bonds between hydroxyl groups present in glucose. Due to the non-symmetry crystal structure, cellulose exhibits piezoelectric properties that convert mechanical stress into the electrical energy, but it has a limitation of a wide application because of the lack of elasticity. In this study, the piezoelectric properties through the intermolecular crystalline structure formed by hydrogen bonds of glucose in a necklace-like supramolecular structure called polyrotaxane (PRX) would be discussed. In order to fabricate PRX piezoelectric elastomer, type of cross-linker was optimized. The resulting PRX elastomer showed high elasticity and voltage generation properties. In addition, it was confirmed that external mechanical stress can be accumulated in the capacitor.