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2007•e-PolymersOpen access

Preparation of polyaniline/Fe 2 O 3 composite dispersions in the presence of dodecylbenzene sulfonic acid

Yan Wu, Shuangxi Xing, Shengyu Jing, Zhou Teili, Chun Zhao

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Abstract

Abstract We reported a chemical approach for the in-situ preparation of conducting polyaniline (PANI)/Fe 2 O 3 composite dispersions using dodecylbenzene sulfonic (DBSA) acid both as dopant and surfactant. The PANI/Fe 2 O 3 composite dispersions were characterized by X-ray diffraction, UV-vis and FT-IR spectra and conductivity measurement. The dispersions showed good stability and existed without precipitate for at least half a year. The gas-sensing behavior of the composite film to 100 ppm of NH 3 was studied through monitoring the change of the resistance.

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Abstract We reported a chemical approach for the in-situ preparation of conducting polyaniline (PANI)/Fe 2 O 3 composite dispersions using dodecylbenzene sulfonic (DBSA) acid both as dopant and surfactant. The PANI/Fe 2 O 3 composite dispersions were characterized by X-ray diffraction, UV-vis and FT-IR spectra and conductivity measurement. The dispersions showed good stability and existed without precipitate for at least half a year. The gas-sensing behavior of the composite film to 100 ppm of NH 3 was studied through monitoring the change of the resistance.

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Available abstract

Abstract We reported a chemical approach for the in-situ preparation of conducting polyaniline (PANI)/Fe 2 O 3 composite dispersions using dodecylbenzene sulfonic (DBSA) acid both as dopant and surfactant. The PANI/Fe 2 O 3 composite dispersions were characterized by X-ray diffraction, UV-vis and FT-IR spectra and conductivity measurement. The dispersions showed good stability and existed without precipitate for at least half a year. The gas-sensing behavior of the composite film to 100 ppm of NH 3 was studied through monitoring the change of the resistance.

Key concepts: Dodecylbenzene, Sulfonic acid, Polyaniline, Composite number, Materials science, Pulmonary surfactant, Conductivity, Dopant

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