Conducting polypyrrole confined in ordered mesoporous silica SBA-15 channels: Preparation and its electrorheology

A new nanocomposite with conducting polypyrrole (PPy) confined in ordered mesoporous silica SBA-15 channels has been synthesized by an in situ polymerization technique. The resulting material was characterized by X-ray diffraction (XRD), N 2 adsorption/desorption, high-resolution transmission electr...

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Bibliographic Details
Published inMicroporous and mesoporous materials Vol. 93; no. 1; pp. 263 - 269
Main Authors Cheng, Qilin, Pavlinek, Vladimir, Lengalova, Anezka, Li, Chunzhong, He, Ying, Saha, Petr
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Inc 28.07.2006
Elsevier
Subjects
Chemistry
Colloidal state and disperse state
Conducting polymer
Electrorheology
Exact sciences and technology
General and physical chemistry
Mesoporous materials
Polypyrrole
Porous materials
SBA-15
Electrorheology
Mesoporous materials
Conducting polymer
SBA-15
Polypyrrole
Confinement
Polymer
Porous material
Silica
Mesoporosity
Preparation
Nanocomposite
Pyrrole polymer
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Summary:A new nanocomposite with conducting polypyrrole (PPy) confined in ordered mesoporous silica SBA-15 channels has been synthesized by an in situ polymerization technique. The resulting material was characterized by X-ray diffraction (XRD), N 2 adsorption/desorption, high-resolution transmission electron microscopy (HRTEM), Fourier-transform infrared spectra (FT-IR) and thermogravimetric analysis (TGA). The results show that PPy is formed in the channels instead of coating the outer surface of SBA-15 and nanocomposite possesses well-ordered hexagonal structure. Further, nanocomposite particles were used as dispersed phase in silicone oil for electrorheological (ER) investigation. Suspension of PPy–SBA-15 displays notable ER characteristics under external electric fields.
ISSN:1387-1811
1873-3093
DOI:10.1016/j.micromeso.2006.03.005