Electrospinning and Solution Properties of Nafion and Poly(acrylic acid)

2008 ◽  
Vol 41 (1) ◽  
pp. 128-135 ◽  
Author(s):  
Hong Chen ◽  
Joshua D. Snyder ◽  
Yossef A. Elabd
Keyword(s):  
Acrylic Acid ◽  
Solution Properties ◽  
Poly Acrylic Acid

scholarly journals SOLVENT OPTIMIZATION OF ELECTROSPUN POLY(ACRYLIC ACID) NANOFIBERS

2021 ◽  
Vol 2021 ◽  
pp. 178-184
Author(s):  
M. Geysoğlu ◽  
F.C. Çallıoğlu
Keyword(s):  
Surface Tension ◽  
Acrylic Acid ◽  
Ph Value ◽  
Fibre Diameter ◽  
Optimum Process ◽  
Distilled Water ◽  
Solution Properties ◽  
Atmospheric Conditions ◽  
Fibre Morphology ◽  
Poly Acrylic Acid

In this study, it was investigated experimentally the influence of various solvents (distilled water and ethanol) on the solution properties, spinning performance, and fibre morphology of the electro spun Poly (acrylic acid) nanofibers. Firstly, polymer solutions were prepared at 5 wt % PAA with various solvent ratios of ethanol and distilled water. Then, solution properties such as viscosity, density, pH, conductivity, and surface tension were determined. The production of nanofiber samples was carried out by electrospinning under the optimum process parameters (voltage, distance between electrodes, feed rate, and atmospheric conditions). Finally, the morphological characterization of the nanofiber surface was carried out with SEM. According to the results, it was observed that conductivity, surface tension and the density of the solution increase as the ethanol ratio decreases. On the other hand, pH value increases as the ethanol ratio increases and, so, the acidic value of the solutions decreases. The viscosity increased until the ethanol/distilled water ratio was 50/50 and then decreased as the ethanol percentage decreased to under 50%. In addition, average fibre diameter decreases with ethanol ratio decreases. It is possible to say that solvent type affects solution properties, fibre morphology and spinning performance significantly. Generally, fine, uniform and bead free nanofibers could be electro spun and the PAA solution containing 70 wt % distilled water and 30 wt % ethanol was selected as the optimum in terms of fibre morphology, web quality and spinning performance.

Hydrophobically modified polyelectrolytes: I. Dilute solution properties of fluorocarbon-containing poly (acrylic acid)

2010 ◽  
Vol 18 (3) ◽  
pp. 322-327
Author(s):  
Zhou Hui ◽  
Song Guo-Qiang ◽  
Zhang Yun-Xiang ◽  
Deeing Reinhold Ma ◽  
Lian Haeussling Lukas
Keyword(s):  
Acrylic Acid ◽  
Solution Properties ◽  
Dilute Solution ◽  
Hydrophobically Modified ◽  
Dilute Solution Properties ◽  
Poly Acrylic Acid

Polystyrene-b-poly(acrylic acid) Vesicle Size Control Using Solution Properties and Hydrophilic Block Length

Langmuir ◽  
2004 ◽  
Vol 20 (10) ◽  
pp. 3894-3900 ◽  
Author(s):  
Amira Choucair ◽  
Christine Lavigueur ◽  
Adi Eisenberg
Keyword(s):  
Acrylic Acid ◽  
Size Control ◽  
Block Length ◽  
Solution Properties ◽  
Vesicle Size ◽  
Poly Acrylic Acid

Soft ionic liquid based resistive memory characteristics in a two terminal discrete polydimethylsiloxane cylindrical microchannel

2020 ◽  
Vol 8 (38) ◽  
pp. 13368-13374
Author(s):  
Muhammad Umair Khan ◽  
Gul Hassan ◽  
Jinho Bae
Keyword(s):  
Ionic Liquid ◽  
Acrylic Acid ◽  
Sodium Hydroxide ◽  
Sodium Salt ◽  
Resistive Memory ◽  
Cylindrical Microchannel ◽  
Memory Characteristics ◽  
Poly Acrylic Acid

This paper proposes a novel soft ionic liquid (IL) electrically functional device that displays resistive memory characteristics using poly(acrylic acid) partial sodium salt (PAA-Na+:H2O) solution gel and sodium hydroxide (NaOH) in a thin polydimethylsiloxane (PDMS) cylindrical microchannel.

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