The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3
Ceramic nanocomposites constituted by a matrix of α-Al2O3 microparticles reinforced by polyaniline emeraldine-salt form (PANI-ES) nanoparticles were prepared by in situ polymerization and characterized structural and morphologically. Peaks related to both materials were observed through XRD techniqu...
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/375312 |
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| author | Edgar A. Sanches Adriano de S. Carolino Amanda L. dos Santos Edson G. R. Fernandes Daniela M. Trichês Yvonne P. Mascarenhas |
| author_facet | Edgar A. Sanches Adriano de S. Carolino Amanda L. dos Santos Edson G. R. Fernandes Daniela M. Trichês Yvonne P. Mascarenhas |
| author_sort | Edgar A. Sanches |
| collection | DOAJ |
| description | Ceramic nanocomposites constituted by a matrix of α-Al2O3 microparticles reinforced by polyaniline emeraldine-salt form (PANI-ES) nanoparticles were prepared by in situ polymerization and characterized structural and morphologically. Peaks related to both materials were observed through XRD technique: PANI-ES presented peaks at 2θ = 8.9, 14.9, 20.8, 25.3, 27.1, and 30.0° and in α-Al2O3 phase peaks were found at 2θ = 25.6, 35.2, 37.9, 43.5, 52.6, 57.6, and 68.1°. Nanocomposite crystallinity percentage was estimated around 70%. SEM showed a polymerization of PANI-ES over alumina plates. By Le Bail method it was observed that PANI-ES and α-Al2O3 have crystallite average size around, respectively, 41 and 250 Å. By FTIR analysis characteristic absorption bands of both materials were identified. Additional bands indicating new chemical bonds were not observed, suggesting that nanocomposite was formed by physical deposition. Nanocomposite DC electrical conductivity was found around 0.24 S/cm (against 1.84×10-4 S/cm for pure PANI-ES), showing an increase of about 1,300 times compared to the pure PANI-ES at room temperature. Thus, this paper showed that both materials have kept its original structural characteristics and exhibited high electrical conductivity when combined in nanocomposite form. |
| format | Article |
| id | doaj-art-bcbfdc9ba1314273b9dc05b83de419a7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-bcbfdc9ba1314273b9dc05b83de419a72025-02-03T05:53:54ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/375312375312The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3Edgar A. Sanches0Adriano de S. Carolino1Amanda L. dos Santos2Edson G. R. Fernandes3Daniela M. Trichês4Yvonne P. Mascarenhas5Programa de Pós-Graduação em Ciência e Engenharia de Materiais (PPGCEM), Programa de Pós-Graduação em Física (PPGFIS), Universidade Federal do Amazonas (UFAM), 69077-000 Manaus, AM, BrazilDepartamento de Física (DF), Universidade Federal do Amazonas (UFAM), 69077-000 Manaus, AM, BrazilNanomed Inovação em Nanotecnologia, 13560-460 São Carlos, SP, BrazilInstituto de Física de São Carlos (IFSC), Universidade de São Paulo (USP), 13566-590 São Carlos, SP, BrazilPrograma de Pós-Graduação em Ciência e Engenharia de Materiais (PPGCEM), Programa de Pós-Graduação em Física (PPGFIS), Universidade Federal do Amazonas (UFAM), 69077-000 Manaus, AM, BrazilInstituto de Física de São Carlos (IFSC), Universidade de São Paulo (USP), 13566-590 São Carlos, SP, BrazilCeramic nanocomposites constituted by a matrix of α-Al2O3 microparticles reinforced by polyaniline emeraldine-salt form (PANI-ES) nanoparticles were prepared by in situ polymerization and characterized structural and morphologically. Peaks related to both materials were observed through XRD technique: PANI-ES presented peaks at 2θ = 8.9, 14.9, 20.8, 25.3, 27.1, and 30.0° and in α-Al2O3 phase peaks were found at 2θ = 25.6, 35.2, 37.9, 43.5, 52.6, 57.6, and 68.1°. Nanocomposite crystallinity percentage was estimated around 70%. SEM showed a polymerization of PANI-ES over alumina plates. By Le Bail method it was observed that PANI-ES and α-Al2O3 have crystallite average size around, respectively, 41 and 250 Å. By FTIR analysis characteristic absorption bands of both materials were identified. Additional bands indicating new chemical bonds were not observed, suggesting that nanocomposite was formed by physical deposition. Nanocomposite DC electrical conductivity was found around 0.24 S/cm (against 1.84×10-4 S/cm for pure PANI-ES), showing an increase of about 1,300 times compared to the pure PANI-ES at room temperature. Thus, this paper showed that both materials have kept its original structural characteristics and exhibited high electrical conductivity when combined in nanocomposite form.http://dx.doi.org/10.1155/2015/375312 |
| spellingShingle | Edgar A. Sanches Adriano de S. Carolino Amanda L. dos Santos Edson G. R. Fernandes Daniela M. Trichês Yvonne P. Mascarenhas The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 Advances in Materials Science and Engineering |
| title | The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 |
| title_full | The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 |
| title_fullStr | The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 |
| title_full_unstemmed | The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 |
| title_short | The Use of Le Bail Method to Analyze the Semicrystalline Pattern of a Nanocomposite Based on Polyaniline Emeraldine-Salt Form and α-Al2O3 |
| title_sort | use of le bail method to analyze the semicrystalline pattern of a nanocomposite based on polyaniline emeraldine salt form and α al2o3 |
| url | http://dx.doi.org/10.1155/2015/375312 |
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