Fabrication and characterization of urchin-like polyaniline microspheres using lignosulfonate as template |
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| Affiliation: | 1. Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, A.P., India;2. Department of Physics, Usha Rama College of Engneering &Technology, Telaprolu 521109, A.P., India;3. Institute of Physics, J. Dlugosz University, Ul. Armii Krajowej 13/15, 42-201 Czestochowa, Poland;1. Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP, Programa de Pós-Graduação em Ciência e Tecnologia de Materiais, POSMAT, Bauru, SP, Brazil;2. Universidade Federal do Ceará – UFC, Departamento de Física, Fortaleza, CE, Brazil;3. Universidade Estadual Paulista “Júlio de Mesquita Filho” – UNESP, Departamento de Física, Bauru, SP, Brazil;1. Departamento de Física, CINVESTAV-IPN, Apdo. Postal 14-740, México D.F. 07360, Mexico;2. Facultad de Química, Materiales, Universidad Autónoma de Querétaro, Querétaro, Mexico;3. Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, México D.F., Mexico;4. Escuela Superior de Ingeniería y Arquitectura del IPN, México D.F., Mexico;5. Escuela Superior de Física y Matemáticas del IPN, México D.F. 07738, Mexico;1. Laboratoire LPR, Département de Physique, Faculté des Sciences, Université Badji Mokhtar, Annaba, Algeria;2. Université Libanaise, Faculté des sciences (I), Laboratoire de Physique et d׳Electronique (LPE), Elhadath, Beirut, Lebanon;3. Condensed Matter Section, the Abdus Salam International Centre for Theoretical Physics (ICTP), Strada Costiera 11, 34014 Trieste, Italy |
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| Abstract: | An urchin-like conducting microsphere was fabricated by synthesizing polyaniline, PANI, with lignosulfonate, LGS. FESEM images showed that this special PANI structure was controllably formed because the pure PANI presented only a nanofiber formed mat, and the PANI/LGS mixture with the ANI/LGS ratio (%) at 36/1 and 18/1 formed spheres while the PANI nanofibers lied on spherical surface, and only at 9/1 led the PANI nanofiber to stand on sphere surface in the urchin-like structure. Taking the pure PANI as a reference, the urchin-like PANI/LGS microsphere has been found to have enhanced conductivity and thermal stability. |
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| Keywords: | Polyaniline Lignosulfonate Urchin-like microspheres Conductivity Thermal stability |
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