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Effects of Sample Processing and High-Energy Electron Irradiation Conditions on the Structural and Transitional Properties of P(VDF-TrFE) Copolymer Films

Published online by Cambridge University Press:  10 February 2011

Vivek Bharti ,
Z.-Y Cheng ,
H. S. Xu ,
G. Shanthi ,
T.-B. Xu ,
T. Mai  and
Q. M. Zhang
Vivek Bharti
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
Z.-Y Cheng
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
H. S. Xu
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
G. Shanthi
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
T.-B. Xu
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
T. Mai
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
Q. M. Zhang
Affiliation:
Materials Research Laboratory, The Pennsylvania State University University Park, PA 16802
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Abstract

Recently it has been demonstrated that using a high electron energy irradiation, the electromechanical properties of polyvinylidene fluoride - trifluoroethylene, P(VDF-TrFE) copolymers can be improved significantly for example; high electric field induced strain (∼ 4.5%) with high elastic energy density, high dielectric constant (∼ 65 with loss less than at 1kHz), high piezoelectric coefficient (∼ 350 pm/V ) and high electro-mechanical coupling coefficient (∼0.45). It was found, depending on sample processing and electron irradiation conditions these properties can be controlled. In this talk we will present the experimental data on the effect of processing and irradiation conditions on structural and transitional behavior of copolymers. These structural information coupled with the electro-mechanical properties will be presented in order to show the possibilities for further improvement.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 600: Symposium FF – Electroactive Polymers , 1999 , 47
Copyright
Copyright © Materials Research Society 2000

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