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PANI/SBR composites as anticorrosive coatings for carbon steel I. Chemical, morphological and superficial characterization

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Abstract

Research of conducting polymer composites has opened a wide array of possibilities to get high performance organic anticorrosive coatings, minimizing the environmental and health impact involved in many current protection systems. Polyaniline (PAni) is one of most studied conducting polymer, for different reasons, among easy processing from solutions into films, reversibly controlled electrical and optical properties. However, its mechanical and adhesion properties are poor. A path to improve PAni properties is to use an elastomer as insulating polymer matrix, as styrene-butadiene rubber (SBR). In this work, a composite from doped PAni and SBR was obtained by solution casting method, the effect of the conducting polymer/elastomer ratio and the PAni doping anion on the chemical nature and morphology of PAni/SBR composites has been studied to determine the feasibility of their application as anticorrosive coatings for carbon steel. Chemical characterization, by means of infrared spectroscopy (FTIR) and RAMAN spectroscopy, was also carried out, the presence of signals attributed to doping anion was identified in composites, also formation of ion oxides such as magnetite, hematite and maghemite were identified. Morphology of composites was obtained by means of optical and scanning electron microscopy, and allows to observe the presence of agglomerates in composites.

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Acknowledgments

The authors would like to thank Dirección General de Educación Superior Tecnológica (DGEST) and CONACYT for financial support, code 5015.13P and No. 177480, respectively. One of the authors (CMDLA) thanks CONACYT No. 490946/279281 for fee scholarship.

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Authors and Affiliations

  1. División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Ciudad Madero, J. Rosas y J. Urueta S/N Col. Los Mangos, C.P. 89440, Ciudad Madero, Tamaulipas, Mexico

    Claudia María De León Almazán, María Yolanda Chávez-Cinco, Ulises Páramo-García, Ana María Mendoza-Martínez & José Luis Rivera-Armenta

  2. Centro de Investigación en Materiales Avanzados, S.C. Chihuahua, Miguel de Cervantes 120, 31109, Chihuahua, Chih, Mexico

    Iván Alziri Estrada-Moreno

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  1. Claudia María De León Almazán
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  2. María Yolanda Chávez-Cinco
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  3. Ulises Páramo-García
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  4. Ana María Mendoza-Martínez
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  6. José Luis Rivera-Armenta
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Correspondence to José Luis Rivera-Armenta.

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De León Almazán, C.M., Chávez-Cinco, M.Y., Páramo-García, U. et al. PANI/SBR composites as anticorrosive coatings for carbon steel I. Chemical, morphological and superficial characterization. Polym. Bull. 73, 1595–1605 (2016). https://doi.org/10.1007/s00289-015-1565-3

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  • DOI: https://doi.org/10.1007/s00289-015-1565-3

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