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Thermal and Liquid Crystalline Properties of a Polymer with Amphiphilic-Mesogenic Side-Chains

Published online by Cambridge University Press:  15 March 2011

Seiji Ujiie ,
Yumi Yano  and
Akira Mori
Seiji Ujiie
Affiliation:
Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue 690-8504, Japan
Yumi Yano
Affiliation:
Department of Material Science, Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue 690-8504, Japan
Akira Mori
Affiliation:
Institute of Advanced Material Study, 86, Kyushu University, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
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Abstract

A low-molecular-weight liquid crystalline amphiphilic compound (Az6Bu) and a liquid crystalline polymethacrylate [P(Az6Bu)] with amphiphilic-mesogenic side-chains are reported in this present paper. A polyethyleneimine chain with 2-hydroxyethyl side-groups was used as the water-soluble spacer. Az6Bu exhibited a lyotropic columnar phase and no thermotropic mesophase. P(Az6Bu) showed thermotropic and lyotropic liquid crystalline properties. P(Az6Bu) formed thermotropic smectic A and C mesophases on the heating and cooling processes. The lyotropic systems consisting of P(Az6Bu) and water exhibited a smectic C lyomesophase with oilystreak and schlieren textures. The layered structures formed in the thermotropic and lyotropic mesophases are composed of a sublayer produced by the anisotropic alignment of aromatic-mesogenic groups and a sublayer of hydrophilic groups.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 709: Symposium CC – Advances in Liquid Crystalline Materials and Technologies , 2001 , CC5.19.1
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Ujiie, S., Tanaka, Y., and Iimura, K., Polym. Adv. Technol, 11, 450 (2000); S. Ujiie and K. Iimura, Polym. J., 25, 347 (1993); S. Ujiie and S. Takagi, High Perform. Polym., 20, 347 (1999).Google Scholar
2. Handbook of Liquid Crystals, ed. Demus, D., Goodby, J., Gray, G. W., Spiess, H.-W. and Vill, V., Wiley-VCH, Weinheim, 1998, Vol. 3, ch. VI and VII; K.Kanie, T. Yasuda, M. Nishi, S. Ujiie, and T. Kato, Chem. Lett., 2001, 480.Google Scholar
3. Demus, D., Pelzl, G., Sharma, N. K. and Weissflog, W., Mol. Cryst. Liq. Cryst., 76, 241 (1981); S. Ujiie, H. Uchino, and K. Iimura, J. Mater. Chem., 5, 2229 (1995).Google Scholar
4. Ujiie, S. and Yano, Y., Chem. Commun., 2000, 79; S. Ujiie and Y. Yano, Mol. Cryst. Liq. Cryst., 347, 265 (2000).Google Scholar
5. Goethals, E. J. and Vlegels, M. A., Polym. Bull., 4. 521(1981).Google Scholar