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Content archived on 2024-05-29

Synthesis and characterization of electromechanically active composites of mesogenic elastomers and electrically active nanoparticles

Objective

This project focuses on the preparation and chemical/physical characterization of a new kind of composite materials, specifically the composites of liquid crystalline elastomers (LCEs) and electrically active nanoparticles.

These materials should retain their original mesomorphic behaviour of pure monodomain liquid crystalline elastomers and in addition exhibit electrical response due to the presence of nanoparticles embedded in the polymer network.

We shall seek for the following properties:

- The composite should elongate/compress under the effect of external electric field; LCEs known so far can only change their shape thermally. Concurrently the included ferroelectric and dielectric nanoparticles of various shapes and anisotropic properties should reorient. It is the coupling between the orientational order of the particles and the orientation order of polymer segments that should lead to electromechanical response. The orientational redistribution of nanoparticles should determine the elongation of the elastomer and consequently the change in the composites shape.

- The composite should change its electrical properties (dielectric constant, permittivity, and/or spontaneous polarization) when exposed to external mechanical strain. A simple elongation should result in the reorientation of nanoparticles and thus induce anisotropic electrical properties. These new composites are expected to carry strong potential for technological and biomedical applications. New synthetic routes preferring high viscosity conditions will be explored.

A significant part of the activities within the project will be dedicated to characterization of newly synthesized materials by spectroscopic techniques, in particular with Nuclear Magnetic Resonance.

Both the organic and inorganic constituents will be investigated by selecting appropriate magnetically active nuclei, e.g. Ti-47, Ti-47, Sr-87 for the inorganic part and C-13, H-1, and preferentially H-2 for the organic part.

Fields of science (EuroSciVoc)

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Topic(s)

Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.

Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

FP6-2005-MOBILITY-5
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Funding Scheme

Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.

EIF - Marie Curie actions-Intra-European Fellowships

Coordinator

JOZEF STEFAN INSTITUTE
EU contribution
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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