Poly (SNS) Quantitative Electrosynthesis and Electrodissolution

1993 ◽  
Vol 328 ◽  
Author(s):  
T. F. Otero ◽  
E. Brillas ◽  
J. Carrasco ◽  
A. Figueras
Keyword(s):  
Conducting Polymers ◽  
Thick Films ◽  
Industrial Applications ◽  
Cathodic Reduction ◽  
Acetonitrile Solution ◽  
Aqueous Acetonitrile ◽  
Acetonitrile Solutions

ABSTRACTThe electrogeneration and electrodissolution of poly (SNS) have been improved by using aqueous acetonitrile solutions having a 1% (ν/ν) of water constant. Compact, adherent and thick films (until 0.4 Mg cm-2) were galvanostatically electrogenerated. The electrodeposited (oxidized) polymer is insoluble in 0.1 M L?CIO4 aqueous acetonitrile solution and solubilizes by cathodic reduction. Both, electrogeneration and electrodissolution, are faradaic processes. Those facts mimic electrodeposition and electroerosion of metals and their concomitant industrial applications. New technological possibilities using polymers in electrophotography, electroreprography, electropolishing, electro-erosion and electromachining are open through polymeric electrodissolution altogether to a new processible way, through the obtained solution, for the conducting polymers.

Anodic behaviour of limonene in low aqueous acetonitrile solutions of Cl−

1988 ◽  
Vol 66 (7) ◽  
pp. 1757-1762 ◽  
Author(s):  
J. A. Caram ◽  
M. E. Martins ◽  
E. G. Gros ◽  
C. M. Marschoff
Keyword(s):  
Water Content ◽  
Aqueous Acetonitrile ◽  
Pt Electrodes ◽  
Acetonitrile Solutions ◽  
Anodic Behaviour ◽  
Derivatives Of ◽  
Reaction Routes

The anodic behaviour of limonene on Pt electrodes was studied in LiCl solutions in acetonitrile with low water content. It was found that cis-6-acetamido-p-menth-1,8-diene is formed with acceptable yields. This compound is of interest as a potential intermediate for obtaining oxidation derivatives of limonene. Other products, among them the new compound 8-acetamido-2,4,8-trimethyl-4-chloromethyl-3-aza-bicyclo[3.3.1]non-2-ene, were identified. Reaction routes are proposed.

Effect of water concentration on photoreduction of anthraquinone-2-sulfonate by 2-propanol in aqueous acetonitrile solution

1987 ◽  
Vol 91 (26) ◽  
pp. 6547-6551 ◽  
Author(s):  
Akihiro. Wakisaka ◽  
Thomas W. Ebbesen ◽  
Hirochika. Sakuragi ◽  
Katsumi. Tokumaru
Keyword(s):  
Water Concentration ◽  
Acetonitrile Solution ◽  
Aqueous Acetonitrile ◽  
Effect Of Water

scholarly journals Process Simulation of the Separation of Aqueous Acetonitrile Solution by Pressure Swing Distillation

Processes ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 409 ◽  
Author(s):  
Jing Li ◽  
Keliang Wang ◽  
Minglei Lian ◽  
Zhi Li ◽  
Tingzhao Du
Keyword(s):  
Acetonitrile Solution ◽  
Optimum Process ◽  
Total Annual Cost ◽  
Heat Integration ◽  
Reflux Ratio ◽  
Water Mixture ◽  
Aqueous Acetonitrile ◽  
Design Variables ◽  
Pressure Swing ◽  
Pressure Swing Distillation

The separation of aqueous acetonitrile solution by pressure swing distillation (PSD) was simulated and optimized through Aspen Plus software. The distillation sequence of the low pressure column (LPC) and high pressure column (HPC) was determined with a phase diagram. The pressures of the two columns were set to 1 and 4 atm, respectively. Total annual cost (TAC) was considered as the objective function, and design variables, such as the tray number, the reflux ratio, and the feeding position, were optimized. The optimum process parameters were obtained. For the reduction of energy consumption, the PSD with full-heat integration was designed. The TAC of this method is lower by 32.39% of that of the PSD without heat integration. Therefore, it is more economical to separate acetonitrile and water mixture by PSD with full-heat integration, which provides technical support for the separation design of such azeotropes.

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