Electrically Conductive Polyaniline/Polyimide Nanofiber Membranes Prepared via a Combination of Electrospinning and Subsequent In situ Polymerization Growth

ABSTRACTThe preparation of well-defined nanomaterials using template methods is well established in the materials literature including porous ceramics, open-framework layered structures and porous membranes. In an effort to prepare thermally and electrically conductive nanowire and nanotube materials, we have recently prepared carbon tubes using polymer fibers produced from an electrostatic, non-mechanical “electrospinning” process as templates. Poly(methyl methacrylate) (PMMA) fibers with average diameter of 150–200 nm were initially fabricated as core materials. The fibers were subsequently coated with a thin layer (20∼50 nm) of conductive polypyrrole (PPy) by in-situ polymerization. Upon high temperature (1000 °C) treatment under inert atmosphere, the PMMA core fibers decomposed completely, followed by carbonization of the PPy wall. The structure of the carbon tubes subsequently produced was demonstrated by SEM and TEM. The carbon tubes were analyzed by infrared, elemental analysis and electron diffraction. The results show that the tubes are largely carbon with a small amount of nitrogen and a relatively low crystallinity.

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The Effect of pH on the Preparation of Electrically Conductive and Physically Stable PANI/Sago Blend Film via in situ Polymerization

Frontiers in Materials ◽

10.3389/fmats.2020.00020 ◽

2020 ◽

Vol 7 ◽

Author(s):

M. E. Ali Mohsin ◽

Nilesh K. Shrivastava ◽

Agus Arsad ◽

Norazah Basar ◽

Azman Hassan

Keyword(s):

In Situ Polymerization ◽

Electrically Conductive ◽

Effect Of Ph ◽

Blend Film

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Anchoring conductive polyaniline on the surface of expandable polystyrene beads by swelling-based and in situ polymerization of aniline method

Chemical Engineering Journal ◽

10.1016/j.cej.2011.06.009 ◽

2011 ◽

Vol 172 (1) ◽

pp. 564-571 ◽

Cited By ~ 9

Author(s):

Juntao Yan ◽

Chunlei Wang ◽

Yan Gao ◽

Zaihang Zheng ◽

Shuangling Zhong ◽

...

Keyword(s):

In Situ Polymerization ◽

Polystyrene Beads ◽

Expandable Polystyrene ◽

Conductive Polyaniline

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Properties of Conductive Polyaniline/Boron Carbide Composites

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.557-559.417 ◽

2012 ◽

Vol 557-559 ◽

pp. 417-420

Author(s):

Hui Huang ◽

Ju Kang Li ◽

Zhong Cheng Guo

Keyword(s):

Thermal Stability ◽

Boron Carbide ◽

In Situ Polymerization ◽

Pure Pani ◽

Conductivity Measurements ◽

Maximum Conductivity ◽

B4c Particles ◽

Conductive Polyaniline ◽

Thermal Stability Of

Conductive polyaniline/boron carbide (PANI/B4C) composites have been synthesized by in-situ polymerization of aniline in the presence of B4C particles. The structure and thermal stability of obtained composites were characterized by FTIR, XRD and TGA. The results showed that PANI and B4C particles were not simply blended, and a strong interaction existed at the interface of B4C and PANI. In the PANI/B4C composite, the degree crystalline of PANI increased and diffraction pattern of B4C was all but of amorphous. And that the composites were more thermally stable than that of the pure PANI. Electrical conductivity measurements indicated that the conductivity of PANI/B4C composites was much higher than that of the pure PANI and the maximum conductivity obtained was 35.6 S•cm-1 at 20 wt% of B4C.

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Electrically Conductive Polyaniline/Silk Fibroin Composite for Ammonia and Acetaldehyde Sensing

Polymers and Polymer Composites ◽

10.1177/096739111802600206 ◽

2018 ◽

Vol 26 (2) ◽

pp. 177-187 ◽

Cited By ~ 1

Author(s):

Sharique Ahmad ◽

Adil Sultan ◽

Faiz Mohammad

Keyword(s):

Silk Fibroin ◽

Room Temperature ◽

Ambient Air ◽

Attenuated Total Reflectance ◽

Electrically Conductive ◽

Total Reflectance ◽

Sensing Material ◽

Prepared Material ◽

Conductive Polyaniline

In this study, camphorsulphonic acid-doped conducting polyaniline/silk fibroin (Pani/SF) composites were prepared by in-situ polymerisation. The Pani/SF composite fibres were characterised by using Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, thermogravimetric analysis, scanning electron microscopy and digital photographs. Results indicated that the Pani was successfully coated on silk fibroin. The electrical properties of Pani/SF composite fibres were influenced by the extent of loading of aniline monomers. The as-prepared material was studied as a sensing material by observing the change in their electrical conductivity on exposure to ammonia and acetaldehyde, followed by ambient air at room temperature. It was found that the composite fibres showed good reversibility and conductivity decreased on exposure to higher concentration of ammonia and acetaldehyde vapours at room temperature.

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Synthesis, Characterization and Corrosion Protection Properties of Polyaniline/TiO2 Nanocomposite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.399-401.2083 ◽

2011 ◽

Vol 399-401 ◽

pp. 2083-2086

Author(s):

Lian Zhong ◽

Yan Hua Wang ◽

Yong Hong Lu

Keyword(s):

Strong Interaction ◽

In Situ Polymerization ◽

Polymer Nanocomposite ◽

Aniline Monomer ◽

Nano Tio2 ◽

Conductive Polyaniline ◽

Anticorrosion Performance ◽

Protective Performance ◽

Epoxy Paint

In this study, conductive polyaniline (PANi)–titania (TiO2) nanocomposites with core–shell structure were prepared and their anticorrosion properties were investigated. PANi/nano-TiO2 composite were prepared by in situ polymerization of aniline monomer in the presence of TiO2 nanoparticles. The morphology and structure of the polymer nanocomposite was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. SEM and FTIR spectra measurements show that PANi and TiO2 nanoparticles are not simply blended or mixed up, and a strong interaction exists at the interface of nano-TiO2 and PANi. From the anticorrosion investigation in 3.5%NaCl, it is revealed that the protective performance of epoxy paint containing PANi/nano-TiO2 composite is significantly improved than PANi or a mixture of polyaniline and nano-TiO2. From the improved anticorrosion performance, it also indicate that PANi and TiO2 nanoparticles are not simply blended or mixed up, the strong interaction exists at the interface of PANi and nano-TiO2. It is the strong interaction that results in the coordinated effect and more excellent anticorrosion performance.

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