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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Polyaniline inclusion into ordered mesoporous silica matrices: Synthesis, characterization and electrical transport mechanism

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Author(s):
Takamori, Dante Yugo [1] ; Bizeto, Marcos Augusto [1] ; de Abreu Fantini, Marcia Carvalho [2] ; Lacerda Rubinger, Carla Patricia [3] ; Faez, Roselena [4] ; Martins, Tereza Silva [1]
Total Authors: 6
Affiliation:
[1] Univ Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Lab Mat Hibridos, Diadema, SP - Brazil
[2] Univ Sao Paulo, Inst Fis, Lab Cristalog, Sao Paulo, SP - Brazil
[3] Univ Fed Itajuba, Inst Fis & Quim, CP 50, BR-37500903 Itajuba, MG - Brazil
[4] Univ Fed Sao Carlos, Lab Mat Polimer & Biossorventes, Rodovia Anhanguera Km 174, BR-13600970 Araras, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Microporous and Mesoporous Materials; v. 274, p. 212-219, JAN 15 2019.
Web of Science Citations: 3
Abstract

Composites of polyaniline (PANI) with MCM-41 and SBA-15 ordered mesoporous silicas were prepared by liquid and vapor monomer adsorption methods. Both methods resulted in polymer encapsulation inside the mesopores, but a higher amount was obtained using the vapor adsorption method. Composites presented a semiconductor behavior and the charge transport mechanism was consistent with a hopping process between localized states. Based on the results of one-dimensional variable range hopping (1D-VRH) conduction parameters, the SBA-15 with polyaniline incorporated by vapor adsorption was the more conductive and ordered material. (AU)