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. 2015 Nov 25:4:732.
doi: 10.1186/s40064-015-1524-3. eCollection 2015.

Porous POSS-PANI nanofibre from interfacial polymerization and hydrothermal approach

Lei Liu  1 , Xiaoxuan Xu  2
Affiliations

Porous POSS-PANI nanofibre from interfacial polymerization and hydrothermal approach

Lei Liu et al. Springerplus. .

Abstract

Nowadays, novel applications for polyaniline (PANI) make new demands on its morphology controlling, and designing novel PANI or PANI composite polymeric materials has been more and more attractive. In this work, octaaminophenyl polyhedral oligomeric silsesquioxane (POSS) was employed to prepare nanostructured PANI composites via controlled fabrication. By interfacial copolymerization, fibrous nanostructure was obtained. The size and morphology of this structure was adjusted by changing POSS to OAPS ratio: the size increased from about 20 to 200 nm when the molar ratio of POSS in the composites increased from 0.5 to 2.0 mol %. More importantly, further hydrothermal treatment for the samples with higher POSS concentration resulted in mesoporous structure on a more microscopic scale, which helps to improve the thermal stability. In the total synthesis, POSS played an important role in the morphology controlling of the composites.

Keywords: Hydrothermal; Microstructure; Polymeric composites; Thermal properties.

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Figures

Fig. 1
Fig. 1
XRD patterns for OPS (a) and OAPS (b)
Fig. 2
Fig. 2
TEM images of POPA-1 (a), POPA-2 (b), POPA-3 (c), and POPA-4 (d)
Fig. 3
Fig. 3
TEM images of POPA-5 (a), POPA-6(b), POPA-7 (c) and TEM images of local area in (d) (red box area) (c)
Fig. 4
Fig. 4
XRD patterns at small angles for POPA-7 (a), POPA-6 (b), POPA-5 (c)
Fig. 5
Fig. 5
TGA curves of POPA-5 (blue), POPA-6(red) and POPA-7 (black)
Fig. 6
Fig. 6
The scheme of experimental approaches to form nanostructured POSS-PANI composites
See this image and copyright information in PMC

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