Electroactive mixtures of polyaniline and EPDM rubber: Chemical, thermal, and morphological characterization

Domenech, Susana Cristina; Bortoluzzi, Janaína Heberle; Soldi, Valdir; Franco, Carlos

doi:10.1002/app.11465

Cited by 9 publications

(16 citation statements)

References 42 publications

(58 reference statements)

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“…The small shift in the peak position and the intensity were due to the different dopant levels of the resulting PANi. We observed that the SO peak in the blends was slightly shifted, and the same was observed for SO 3 H. This clearly indicated that hydrogen bonding21, 22 took place in the sulfonyl group of SPES and the amine groups of PANi, shown in Figure 4; intermolecular interaction was observed in the blends. This confirmed the fact that PANi was dispersed as an interpenetrating network in the SPES matrix.…”

Section: Resultssupporting

confidence: 65%

Molecular composites created by the solution blending of polyaniline and sulfonated poly(ether sulfone)

Kanhegaokar

Gao

Choi

et al. 2010

J of Applied Polymer Sci

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New conducting thermally stable blends of polyaniline (PANi) with sulfonated poly(ether sulfone) as a matrix were prepared by a solution-blending method. Camphorsulfonic acid (CSA) was used as a protonic agent for PANi. A sulfonyl group was introduced into the poly(ether sulfone) to enhance the coulomb interaction among the blends. The influence of the sulfonated group in poly(ether sulfone) was monitored with electrical property measurements. Ultraviolet-visible spectra of the blend compositions showed a well-developed polaron band. The compatibility of the blends, that is, hydrogen bonding and dispersion at the molecular level, was ascertained with X-ray diffraction and Fourier transform infrared (FTIR) spectroscopy; these supported intermolecular interaction. A smooth and uniform morphology was observed in the blends. The electrical conductivity of the blends increased up to 14 S/cm with the protonation of the PANi complex with CSA, and the percolation threshold was found to be 2 wt % PANi. These new blends showed increases in conductivity and compatibility over other PANi-poly(ether sulfone) blends.

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Section: Resultssupporting

confidence: 65%

Molecular composites created by the solution blending of polyaniline and sulfonated poly(ether sulfone)

Kanhegaokar

Gao

Choi

et al. 2010

J of Applied Polymer Sci

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“…Peaks at 2919 and 2859 cm −1 represent C‐H vibration mode in EPDM 36 . Peak at 742 cm −1 is due to the angular deformation of the C‐H 2 linkage in the EPDM chain 37 . Stretching vibration at 1459 and 1374 cm −1 states that C‐H 2 bending and angel deformation of C‐H 3 group in EPDM chain 38 .…”

Section: Resultsmentioning

confidence: 99%

“…36 Peak at 742 cm À1 is due to the angular deformation of the C-H 2 linkage in the EPDM chain. 37 Stretching vibration at 1459 and 1374 cm À1 states that C-H 2 bending and angel deformation of C-H 3 group in EPDM chain. 38 Figure 7B shows FTIR-ATR spectrums of different EPDM composites.…”

Section: Transmission Electron Microscopy Analysismentioning

confidence: 99%

Study the effect of different fillers on the performance of ethylene propylene diene monomer rubber‐based thermal shielding materials

Mosa,

Mokhtar,

Fouda

et al. 2023

Polymers for Advanced Techs

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Polymeric composites are becoming increasingly popular materials due to their wide range of uses in heat shielding materials for solid rocket motors and aerospace applications. Novel polymeric composites are prepared and evaluated containing chopped carbon fibers, glass fibers (GF), and basalt fibers (BF), besides, recently used fillers such as Kevlar fibers (KF), and fumed silica (FS) to study their effects on the mechanical, thermal, and ablative properties of the ethylene propylene diene monomer (EPDM) hybrid composite. Mechanical, chemical, thermal, and ablative tests are performed to show the performance of the prepared polymeric composites. Experimental investigations have shown that the addition of GF to the EPDM matrix has a great influence on raising the tensile strength to 6.570 MPa. By incorporating KFs into EPDM, a solid char layer is formed during ablation, resulting in the best ablative performance with a decrease in the ablation rate of 73%, while the addition of FS, and BF to EPDM gives the best thermal stability results with total weight loss of 80.34%, and 81.77%, respectively.

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“…Domenech et al [20] found that MAH forms covalent bonds with the PANI backbone in PANI/DBSA complex. Our studies show that the drop in conductivity is significant with MAH-functionalized polyethylene as compatibilizer.…”

Section: Resultsmentioning

confidence: 99%

Compatibilization of Conductive Polyethylene/Polyaniline Blends

Annala¹,

Löfgren²

2006

Macro Materials & Eng

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Summary: The compatibilization of polyethylene/polyaniline (PE/PANI) blends and the preparation of plasticized PANI/camphorsulfonic acid (CSA) complexes suitable for melt blending were studied. Rheological properties of the components essentially affected the morphology of the blend and thereby the electrical conductivity. The hydrogen bonds between the PANI complex and the functionalized metallocene PE used as compatibilizer compensated the unfavorable viscosities of the components. Mechanical properties of PE/PANI blends were improved, and electrical conductivity of the blends remained the same or increased through addition of functionalized metallocene polyethylene. Plasticized PANI/CSA complex with good electrical conductivity was successfully prepared.

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Electroactive mixtures of polyaniline and EPDM rubber: Chemical, thermal, and morphological characterization

Cited by 9 publications

References 42 publications

Molecular composites created by the solution blending of polyaniline and sulfonated poly(ether sulfone)

Molecular composites created by the solution blending of polyaniline and sulfonated poly(ether sulfone)

Study the effect of different fillers on the performance of ethylene propylene diene monomer rubber‐based thermal shielding materials

Compatibilization of Conductive Polyethylene/Polyaniline Blends

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