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Determination of Local Fiber Texture in Liquid Crystal Polymer by Electron Diffraction

Published online by Cambridge University Press:  10 February 2011

J. Taylor ,
M. Libera  and
M. Greeley
J. Taylor
Affiliation:
Department of Chemical, Biochemical, and Materials Engineering, Stevens Institute of Technology, Hoboken, New Jersey, 07030
M. Libera
Affiliation:
Department of Chemical, Biochemical, and Materials Engineering, Stevens Institute of Technology, Hoboken, New Jersey, 07030
M. Greeley
Affiliation:
Department of Electrical Engineering and Computer Science, Stevens Institute of Technology, Hoboken, New Jersey, 07030
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Abstract

The rigid chain microstructure of thermotropic liquid crystal polymers (TLCPs) permits an ordered morphology to form consequently giving these materials exceptionally high strength. X-ray and neutron scattering techniques effectively determine the semi-crystalline structure of TLCP but lack the spatial resolution needed to detect morphological changes occurring on sub-micron length scales. This research develops an electron optical technique to resolve the local orientation of LCP fibers at resolutions on the order of 100-300 nm. This paper outlines the essential elements of this technique and presents preliminary results showing systematic morphological changes of LCP fiber as a function of position across the fiber diameter.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 559: Symposium D – Liquid Crystals Materials and Devices , 1999 , 171
Copyright
Copyright © Materials Research Society 1999

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References

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