Polarization reversal of aliphatic polyurethane above the glass transition temperature
説明
In this report, the J(current)-E(electric field) hysteresis of hydrogen bonded polymers is discussed. The selected hydrogen bonded polymers are polyurethane copolymers. These copolymers are slightly crystalline. The remanent polarization is observed above the glass transition temperature through the transformation of a J-E hysteresis curve to a D(electric displacement)-E hysteresis one. The observation suggests a possibility of liquid ferroelectrics far from amorphous ferroelectrics.
収録刊行物
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- 10th International Symposium on Electrets (ISE 10). Proceedings (Cat. No.99 CH36256)
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10th International Symposium on Electrets (ISE 10). Proceedings (Cat. No.99 CH36256) 675-677, 2003-01-22
IEEE