Improving the Performance of High Temperature Piezopolymers for Magnetoelectric Applications

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Piezoelectricity in amorphous polymers is mainly due to the orientation polarization of the molecular dipoles. Aromatic polyimides are high-performance polymeric materials possessing large molecular dipoles. We already reported good magnetoelectric performance of laminate composites with Vitrovac 4040® as magnetostrictive component and the 2,6(b-CN)APB/ODPA (poli 2,6) polyimide as the piezoelectric. Although the piezoelectric response of this polyimide is good, its mechanical properties can be improved. To combine the best mechanical and piezoelectric response in the same polymer, copolyimides have been synthesized by reaction of the 4,4-oxydiphtalic anhydride (ODPA) with a mixture of 1,3-Bis-2-cyano-3-(3-aminophenoxy) phenoxybenzene (diamine 2CN) and 1,3-Bis (3-aminophenoxy) benzene (diamine 0CN). We present the piezoelectric, mechanical and ME performance of laminate composites of these copolyimides.

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Edited by:

Evangelos Hristoforou and Dr. Dimitros S. Vlachos

Pages:

439-442

Citation:

J. Gutiérrez et al., "Improving the Performance of High Temperature Piezopolymers for Magnetoelectric Applications", Key Engineering Materials, Vol. 543, pp. 439-442, 2013

Online since:

March 2013

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$38.00

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