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

2011 ◽  
Vol 172 (1) ◽  
pp. 564-571 ◽  
Author(s):  
Juntao Yan ◽  
Chunlei Wang ◽  
Yan Gao ◽  
Zaihang Zheng ◽  
Shuangling Zhong ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Polystyrene Beads ◽  
Expandable Polystyrene ◽  
Conductive Polyaniline

Properties of Conductive Polyaniline/Boron Carbide Composites

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.

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

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.

Preparation and Characterization of Conductive Polyaniline/Zirconia Nanoparticles Composites

2011 ◽  
Vol 221 ◽  
pp. 302-307 ◽  
Author(s):  
Hui Huang ◽  
Zhong Cheng Guo ◽  
Wei Zhu ◽  
Fa Chuang Li
Keyword(s):  
In Situ Polymerization ◽  
Thermo Gravimetric Analysis ◽  
Zro2 Nanoparticles ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Thermo Gravimetric ◽  
Maximum Conductivity ◽  
Conductive Polyaniline

Conductive polyaniline/zirconia (PANI/ZrO2) composites have been synthesized by in-situ polymerization of aniline in the presence of ZrO2 nanoparticles. The structure and morph- ology of composites were characterized by Fourier-transform infrared spectra (FTIR), thermo- gravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscope (SEM). The conductivity was also investigated. The results showed that PANI and ZrO2 nanoparticles were not simply blended, and a strong interaction existed at the interface of ZrO2 and PANI. It was probably a composite at molecular level. The composites were more thermal stability than that of the pure PANI. XRD analyses confirmed PANI deposited on the surface of ZrO2 nanoparticles had no effect on crystallization performance of ZrO2 nanoparticles. Electrical conductivity measurements indicated that the conductivity of PANI/ZrO2 composites was much higher than that of PANI and the maximum conductivity obtained was 11.27S/cm at 15 wt% of ZrO2 nanoparticles.

Preparation and Characterization of Conductive Polyaniline/Cerium Dioxide Composites

2010 ◽  
Vol 663-665 ◽  
pp. 686-689
Author(s):  
Hui Huang ◽  
Zhong Cheng Guo
Keyword(s):  
Fourier Transform ◽  
Cerium Dioxide ◽  
In Situ Polymerization ◽  
Ceo2 Nanoparticles ◽  
Pure Pani ◽  
X Ray Diffraction ◽  
Maximum Conductivity ◽  
Conductive Polyaniline

Conductive polyaniline/cerium dioxide (PANI/CeO2) composites have been synthesized by in-situ polymerization of aniline in the presence of CeO2 nanoparticles. The structure and thermal stability of obtained composites were characterized by Fourier-transform infrared spectra (FTIR), Fourier-transform Raman spectra (FT-Raman), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The results showed that PANI and CeO2 nanoparticles were not simply blended, and a strong interaction existed at the interface of CeO2 and PANI. In the PANI/CeO2 composite, the degree crystallinity of PANI increased and diffraction pattern of CeO2 was amorphous. And that the composites were more thermally stable than that of the pure PANI. Electrical conductivity measurements indicated that the conductivity of PANI/CeO2 composites was much higher than that of the pure PANI and the maximum conductivity obtained was 11.68 S/cm at 17.5 wt% of CeO2.

scholarly journals Ultraflexible and Mechanically Strong Polymer/Polyaniline Conductive Interpenetrating Nanocomposite via In Situ Polymerization of Vinyl Monomer

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2159
Author(s):  
Haihua Wang ◽  
Xiaojing Wu ◽  
Xuan Qin ◽  
Guiqiang Fei ◽  
Liyu Sun ◽  
...  
Keyword(s):  
Tensile Strength ◽  
In Situ Polymerization ◽  
Conductive Polymer ◽  
High Strength ◽  
Polymer Nanocomposite ◽  
Vinyl Monomer ◽  
Elongation At Break ◽  
Conductive Polyaniline ◽  
High Flexibility

Simultaneous enhancement of conductivity and mechanical properties for polyaniline/polymer nanocomposite still remains a big challenge. Here, a reverse approach via in situ polymerization (RIP) of vinyl monomers in waterborne polyaniline dispersion was raised to prepare conductive polyaniline (GPANI)/polyacrylate (PMB) interpenetrating polymer (GPANI-PMB) nanocomposite. GPANI/PMB physical blend was simultaneously prepared as reference. The conductive GPANI-PMB nanocomposite film with compact pomegranate-shape morphology is homogeneous, ultraflexible and mechanically strong. With incorporating a considerable amount of PMB into GPANI via the RIP method, only a slight decrease from 3.21 to 2.80 S/cm was detected for the conductivity of GPANI-PMB, while the tensile strength significantly increased from 25 to 43.5 MPa, and the elongation at break increased from 40% to 234%. The water absorption of GPANI-PMB3 after 72 h immersion decreased from 24.68% to 10.35% in comparison with GPANI, which is also higher than that of GPANI/PMB. The conductivity and tensile strength of GPANI-PMB were also much higher than that of GPANI/PMB (0.006 S/cm vs. 5.59 MPa). Moreover, the conductivity of GPANI-PMB remained almost invariable after folding 200 times, while that of GPANI/PMB decreased by almost half. This RIP approach should be applicable for preparing conventional conductive polymer nanocomposite with high conductivity, high strength and high flexibility.

scholarly journals Preparation and Properties of Electrically Conductive Polyaniline-Polystyrene Composites by in-situ Polymerization and Blending

1997 ◽  
Vol 29 (5) ◽  
pp. 404-409 ◽  
Author(s):  
Se Young Oh ◽  
Hyung Chul Koh ◽  
Jeong Woo Choi ◽  
Hee-Woo Rhee ◽  
Hyung Su Kim
Keyword(s):  
In Situ Polymerization ◽  
Electrically Conductive ◽  
Conductive Polyaniline

scholarly journals Liquid exfoliated MoS2 Sheet coupled with Conductive Polyaniline for Gas Sensor

2021 ◽  
Author(s):  
Hemalatha Parangusan ◽  
Jolly Bhadra ◽  
Razen Al-Qudah ◽  
Hibballa Elgurashi ◽  
Marwa Abdelhakem ◽  
...  
Keyword(s):  
Electron Microscope ◽  
In Situ Polymerization ◽  
Morphological Characterization ◽  
Morphological Properties ◽  
X Ray ◽  
Transmission Electron ◽  
Mos2 Nanosheet ◽  
Conductive Polyaniline ◽  
Polymerization Method

Polyaniline (PANI)/MoS2 composites with porous microspheres were prepared by a hydrothermal and in situ polymerization method. The structural, optical, and morphological properties were characterized by X-ray powder diffraction, FTIR, scanning electron microscope, transmission electron microscope. The XRD results confirmed that the PANI/MoS2 composite was formed. Morphological characterization reveals that the successful formation of few to multilayered MoS2 nanosheet intercalated with the PANI nanoparticles.

Fabrication and properties of polyaniline/ramie composite fabric based on in situ polymerization

2021 ◽  
pp. 096739112110283
Author(s):  
Guizhen Ke ◽  
Mofasser Haque Chowdhury ◽  
Xinya Jin ◽  
Wenbin Li
Keyword(s):  
Electrical Conductivity ◽  
In Situ Polymerization ◽  
Ph Value ◽  
Full Range ◽  
Decomposition Temperature ◽  
Ftir Analysis ◽  
Mechanical Measurement ◽  
Conductive Polyaniline ◽  
Color Depth

Polyaniline (PANI) is one of the most important conducting polymer and has been widely used in various fields for its tunable electrical conductivity. In this manuscript, conductive polyaniline/ramie fabrics were developed by in situ polymerization and characterized. The effect of aniline content, polyetherimide (PEI) pretreatment, padding and the color depth (K/S value) on electrical resistivity was analyzed. The result showed that electrical conductivity was increased with the increase of aniline (ANI) contents. PEI pretreatment and padding method improved the conductivity of the fabric significantly. The result of K/S value was reversely consistent with the conductivity. Both scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR) analysis confirmed that polyaniline particles were successfully deposited on the surface of the ramie fabrics. Thermal degradation (TG) measurement showed that polyaniline (PANI) polymerization decreased the onset decomposition temperature. Mechanical measurement showed that pretreatment process reduced the tensile strength of conductive ramie fabrics by 30%. K/S value in full range showed that the color of PANI/ramie fabric was sensible to pH value. Contact angle (CA) measurement disclosed the conductive PANI/ramie fabric was hydrophobic and this hydrophobicity was stable to the change of pH value. The obtained PANI/ramie fabrics can be used as potential conductive multifunctional textiles.

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