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The Sensitivity of Small Molecule Sorption to Annealing in Glassy Liquid Crystalline Polymers

Published online by Cambridge University Press:  15 February 2011

Atsushi Morisato ,
N. R. Miranda ,
J. T. Willits ,
G. R. Cantrell ,
B. D. Freeman ,
H. B. Hopfenberg ,
S. Makhija ,
I. Haider  and
M. Jaffe
Atsushi Morisato
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
N. R. Miranda
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
J. T. Willits
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
G. R. Cantrell
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
B. D. Freeman
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
H. B. Hopfenberg
Affiliation:
Department of Chemical Engineering, North Carolina State University, Raleigh, NC 27695
S. Makhija
Affiliation:
Hoechst Celanese Corp., Robert L. Mitchell Technical Center, 86 Morris Ave., Summit, NJ 07901
I. Haider
Affiliation:
Hoechst Celanese Corp., Robert L. Mitchell Technical Center, 86 Morris Ave., Summit, NJ 07901
M. Jaffe
Affiliation:
Hoechst Celanese Corp., Robert L. Mitchell Technical Center, 86 Morris Ave., Summit, NJ 07901
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Abstract

The sorption of organic penetrants is found to be sensitive to thermal annealing conditions in a series of glassy, nematic, thermotropic, random copolyesters. Controlled thermal annealing of two polymers in this series permitted a systematic variation of chain packing and, presumably, higher order molecular suprastructure, ranging from a disordered amorphous morphology to More ordered nematic liquid crystalline and semi-crystalline morphologies. The development of liquid crystalline order appears to reduce or preclude small molecule solubility in nematically ordered forms of these polymers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 321: Symposium E – Crystallization and Related Phenomena in Amorphous Materials—Ceramics, Metals, Polymers, and Semiconductors , 1993 , 81
Copyright
Copyright © Materials Research Society 1994

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References

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