The Formation and Characterization of Lyotropic Liquid Crystal Phase of Polyaniline Doped with Dodecylbenzene Sulfonic Acid

Abstract

Abstract: Polyaniline thermal doped with dodecylbenzene sulfonic acid was found to form a liquid-crystalline solution in m-cresol.Apolarizing optical microscope and X-ray diffraction measurement were used to study the texture of liquid-crystalline phase.The doped methods had a great effect on the solubility of PAN-DBSAin organic solvents and the appearance of lyotropic liquid crystal of PAN-DBSAsolution.An ordered smectic structure with a layer spacing of d=3.309 nm can be observed for the thermal doped PAN-DBSAin m-cresol.

Key words: Polyaniline, Lyotropic liquid crystal, Dodecylbenzene sulfonic acid, Dopant, Texture

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ZHENG Yu-Dong, LI Ji-Bo, HUANG Jiong-Liang. The Formation and Characterization of Lyotropic Liquid Crystal Phase of Polyaniline Doped with Dodecylbenzene Sulfonic Acid[J]. Chem. J. Chinese Universities, 1997, 18(5): 823.

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The Formation and Characterization of Lyotropic Liquid Crystal Phase of Polyaniline Doped with Dodecylbenzene Sulfonic Acid

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