| 摘要 |
<p>The present invention provides a material for piezoelectric transduction which is suitable for a usage that requires maintaining sufficient piezoelectricity and heat-resistance, even if stored at high temperature for a long period. The material for piezoelectric transduction includes a main chain liquid crystal polymer. Preferable aspects are that the main chain liquid crystal polymer contains a constitutional unit including a cyclic group, a connected portion, a functional unit, and a spacer portion, as a repeated unit, that the main chain liquid crystal polymer is at least one selected from polyester, aromatic polymer, and aromatic polyester, and that a decay rate, which is defined as (( alpha - beta )/ alpha ), in which alpha is the piezoelectricity of the material for piezoelectric transduction at room temperature prior to heating and beta is the piezoelectricity of the same after seven days of continuous heating at 85 DEG C, is equal to or less than 0.1.</p> |
