Accession Number:

ADA512957

Title:

Dielectric Response of Structured Multilayered Polymer Films Fabricated by Forced Assembly

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

2008-03-17

Pagination or Media Count:

4.0

Abstract:

The effect of introducing a multilayer microstructure on the dielectric properties of polymer materials is evaluated in 32- and 256-layer films with alternating polycarbonate PC and polyvinylidene-hexafluoropropylene coPVDF layers. The permittivity, dielectric loss, dielectric strength, and energy density were measured as a function of the relative PCcoPVDF volume concentrations. The permittivity follows an effective medium model while the dielectric strength was typically higher than that predicted by a volume fraction based weighted average of the components. Energy densities as high as 14 J cm3, about 60 greater than that of the component polymers, are measured for 50 PC50 coPVDF films.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE