Planate Conducting Polymer Actuator and Its Application

2006 ◽  
Author(s):  
Masaki Fuchiwaki ◽  
Kazuhiro Tanaka ◽  
Keiichi Kaneto
Keyword(s):  
Water Level ◽  
Conducting Polymer ◽  
Sulfonic Acid ◽  
Flow Channel ◽  
Electrochemical Potential ◽  
Reciprocating Motion ◽  
Micro Pump ◽  
Scan Rate ◽  
Polymer Actuator ◽  
Dodecylbenzene Sulfonic Acid

We propose a planate conducting polymer actuator which can transform only its central part locally and a micro pump using its actuator as a drive source. We have developed a planate conducting polymer actuator based on polypyrrole and two types of acids, such as p-phenol sulfonic acid and dodecylbenzene sulfonic acid, by electrodeposition. Its structure was patterned bimorph structure with anion-driven, cation-driven and bimorph layers. The planate conducting polymer actuator could deform only its central part locally. And, we have proposed a micro pump using the planate conducting polymer actuator as the drive source. The water level in the flow channel of micro pump shows the reciprocating motion measuring ±2 mm in accordance with the oscillation of the bimorph conducting polymer actuator which was approximately 28 μl/min. The oscillating volume can be controlled by the application of electrochemical potential and its scan rate applied to the actuator.

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.

Tris(trifluoromethylsulfonyl)methide-doped polypyrrole as a conducting polymer actuator with large electrochemical strain

2006 ◽  
Vol 156 (2-4) ◽  
pp. 351-355 ◽  
Author(s):  
Susumu Hara ◽  
Tetsuji Zama ◽  
Wataru Takashima ◽  
Keiichi Kaneto
Keyword(s):  
Conducting Polymer ◽  
Polymer Actuator

Actuation characteristics of all-organic polymer actuator with conducting polymer electrode

2012 ◽  
Vol 21 (6) ◽  
pp. 699-703 ◽  
Author(s):  
Shin Woo Lee ◽  
Jong Wan Kim ◽  
Yong Ho Kim ◽  
Suck-Hyun Lee ◽  
Jae Young Jho
Keyword(s):  
Conducting Polymer ◽  
Organic Polymer ◽  
Polymer Actuator

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.

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.

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