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Birefringence and Order of Liquid Crystal Polymer Solutions

Published online by Cambridge University Press:  22 February 2011

Hedi Mattoussi ,
Moran Srinivasarao ,
Philip G. Kaatz  and
Guy C. Berry
Hedi Mattoussi
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Moran Srinivasarao
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Philip G. Kaatz
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Guy C. Berry
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
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Abstract

Birefringence measurements of nematic solutions of the poly(p-phenylene benzobisthiazole), PBT, using interference between the ordinary and extraordinary waves created when a plane polarized wave enters the crystal, are described. The measured birefringence is high, e.g., ne – no varies from 0.05 to 0.09 at 633 nm for polymer concentrations 4×10−2 < c < 10×10−2(g/cm3). These data are discussed with the implications they have on the order parameter in these solutions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 214: Symposium R1 – Optical and Electrical Properties of Polymers , 1990 , 157
Copyright
Copyright © Materials Research Society 1991

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References

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