Electrical conductivity response of dodecylbenzene sulfonic acid-doped polypyrrole films to SO2–N2 mixtures

2000 ◽  
Vol 114 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Walaiporn Prissanaroon ◽  
Ladawan Ruangchuay ◽  
Anuvat Sirivat ◽  
Johannes Schwank
Keyword(s):  
Electrical Conductivity ◽  
Sulfonic Acid ◽  
Polypyrrole Films ◽  
Dodecylbenzene Sulfonic Acid

Hydrogen Bonding Effects on the Electrical Properties and Phase Morphology of Polyaniline Blends

2005 ◽  
Vol 13 (4) ◽  
pp. 415-423
Author(s):  
Pan Wei ◽  
Yang Shenglin ◽  
Li Guang ◽  
Jiang Jianming
Keyword(s):  
Electrical Conductivity ◽  
Hydrogen Bonding ◽  
Electrical Properties ◽  
Cluster Size ◽  
Sulfonic Acid ◽  
Carbonyl Groups ◽  
Solution Cast ◽  
Doped Polyaniline ◽  
Dodecylbenzene Sulfonic Acid ◽  
Polyacrylonitrile Copolymer

Blends of dodecylbenzene sulfonic acid-doped polyaniline (PANI-DBSA) with either polyacrylonitrile copolymer (PAN) or polystyrene (PS) were solution cast. The investigation focused on the interaction between the components, the morphology and the resulting electrical conductivity of blends. The results showed that with the same PANI-DBSA content the conductivity of PANI-DBSA/PAN was higher than that of PANI-DBSA/PS. PANI-DBSA was dispersed uniformly in the PAN matrix and its cluster size was rather smaller than in the PS matrix. This is attributed to hydrogen bonding between the carbonyl groups in PAN and the imine groups in PANI, which should lead to better compatibility between PANI-DBSA and PAN.

Thermal Stability and Electrical Conductivity of Graphite Nanosheets/Polyaniline Composites

2014 ◽  
Vol 1053 ◽  
pp. 283-289
Author(s):  
Ying Xia Ma ◽  
Cui Ping Lu ◽  
Ru Juan Wang ◽  
Xue Yan Du
Keyword(s):  
Thermal Stability ◽  
Electrical Conductivity ◽  
Electron Spectroscopy ◽  
Sulfonic Acid ◽  
X Ray ◽  
Graphite Nanosheets ◽  
Maximum Value ◽  
Dodecylbenzene Sulfonic Acid ◽  
Polyaniline Composites ◽  
Pani Matrix

Composites of graphite nanosheets (GNS) fillers in a polyaniline (PANI) matrix doped with dodecylbenzene sulfonic acid were synthesized by polymerization with the aid of sonication. The resulting GNS/PANI composites were characterized by scanning and trans-mission electron microscopy, Fourier transform infrared spectroscopy, X-ray photo-electron spectroscopy, thermogravimetry and electrical conductivity. The results showed that the GNS play an important role in the improvement of thermal stability and electrical conductivity of the composites. Especially, followed the change of GNS contents of the composites, the results of the thermal stability analysis and electrical conductivity analysis got the same variation trend. When the GNS contents for PANI reached 5 wt% in the composites, the best thermal stability and the maximum value of electrical conductivity (6.48 S·cm-1) were obtained.

Effectiveness of Commercial Disinfectants for Inactivating Hepatitis A Virus on Agri-Food Surfaces

2003 ◽  
Vol 66 (1) ◽  
pp. 115-119 ◽  
Author(s):  
J. JEAN ◽  
J.-F. VACHON ◽  
O. MORONI ◽  
A. DARVEAU ◽  
I. KUKAVICA-IBRULJ ◽  
...  
Keyword(s):  
Active Ingredient ◽  
Quaternary Ammonium ◽  
High Density Polyethylene ◽  
Contact Time ◽  
Sulfonic Acid ◽  
Hepatitis A ◽  
Incubation Temperature ◽  
Hepatitis A Virus ◽  
Dodecylbenzene Sulfonic Acid ◽  
High Concentrations

Six commercial disinfectants were tested for their efficacy in inactivating hepatitis A virus in solution or attached to agri-food surfaces. Disinfectant I contains 10% quaternary ammonium plus 5% glutaraldehyde;disinfectant II contains 12% sodium hypochlorite; disinfectant III contains 2.9% dodecylbenzene sulfonic acid plus 16% phosphoric acid; disinfectant IV contains 10% quaternary ammonium; disinfectant V contains 2% iodide; and disinfectant VI contains 2% stabilized chlorine dioxide. Among these, disinfectants I and II were shown to be the most effective in inactivating hepatitis A virus in solution. The efficacy of these disinfectants was further tested against hepatitis A virus attached to common agri-food surfaces, including polyvinyl chlorine, high-density polyethylene, aluminum, stainless steel, and copper. Disinfectant II was shown to be the most effective, with a maximum inactivation level of about 3 log10. The inactivation efficacy was shown to be affected by the concentration of the active ingredient, the contact time between the disinfectant and the contaminated surfaces, and the incubation temperature. In general, hepatitis A virus was shown to be highly resistant to most disinfectants tested, and high concentrations of active ingredient were needed to achieve acceptable inactivation levels.

scholarly journals In-situ polymerization of EDOT in water/methanol with different DBSA contents

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Chia-Fu Chen ◽  
Chi-an Dai ◽  
Wen-Yen Chiu
Keyword(s):  
Spin Coating ◽  
Sulfonic Acid ◽  
In Situ Polymerization ◽  
Smooth Surfaces ◽  
Water Mixture ◽  
Degradation Temperature ◽  
Morphology Of Films ◽  
Dodecylbenzene Sulfonic Acid

AbstractIn this work, poly(3-ethylenedioxythiophene) (PEDOT) was synthesized on glass by spin coating for 10 seconds at 500 rpm and polymerization was carried out in an oven at 110°C for 10 min. Methanol and water mixture were used as the solvent and dodecylbenzene sulfonic acid (DBSA) as the surfactant. The conductivities of films were measured and their relationship with different solvent or various surfactant contents were discussed. The morphology of films was observed by SEM, and PEDOT synthesized in methanol-rich solvents or with less DBSA content had more smooth surfaces, showed lower degradation temperature (by TGA). Also, PEDOT synthesized in methanol-rich solvents or with less DBSA were doped better, as observed by UV-Vis spectra.

Removal of lead and cadmium from aqueous solutions by using 4-amino-3-hydroxynaphthalene sulfonic acid-doped polypyrrole films

2018 ◽  
Vol 25 (9) ◽  
pp. 8581-8591 ◽  
Author(s):  
Mohamed Lamine Sall ◽  
Abdou Karim Diagne Diaw ◽  
Diariatou Gningue-Sall ◽  
Alexandre Chevillot-Biraud ◽  
Nihal Oturan ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Sulfonic Acid ◽  
Polypyrrole Films ◽  
Lead And Cadmium
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