scholarly journals Ultrasonic Velocity and Absorption of Aqueous Solutions of Polyvinyl Alcohol

1963 ◽  
Vol 12 (116) ◽  
pp. 330-334
Author(s):  
Kiyoshi ARAKAWA ◽  
Kazushige KUBOTA ◽  
Yoshihisa NAGASHIMA
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Ultrasonic Velocity

scholarly journals The Ultrasonic Velocity and Absorption of Aqueous Solutions of Polyvinyl Alcohol

1964 ◽  
Vol 37 (4) ◽  
pp. 559-563 ◽  
Author(s):  
Kiyoshi Arakawa ◽  
Nobuo Takenaka ◽  
Mineo Watase ◽  
Kazunari Kubota
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Ultrasonic Velocity

RADIATION-INDUCED DECOMPOSITION AND POLYMERIZATION OF POLYVINYL ALCOHOL IN AQUEOUS SOLUTIONS

2013 ◽  
Vol 12 (7) ◽  
pp. 1323-1328 ◽  
Author(s):  
Lujun Chen ◽  
Weihua Sun ◽  
Jinping Tian ◽  
Jianlong Wang ◽  
Shijun He
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Radiation Induced ◽  
Induced Decomposition

scholarly journals Radiation effects on aqueous solutions of polyvinyl alcohol

1958 ◽  
Vol 31 (122) ◽  
pp. 256-256
Author(s):  
J. Berkowitch ◽  
A. Charlesby ◽  
V. Desreux
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Radiation Effects

scholarly journals Investigation on the Effect of Addition of Fe3+ Ion into the Colloidal AgNPs in PVA Solution and Understanding Its Reaction Mechanism

2017 ◽  
Vol 17 (3) ◽  
pp. 439 ◽  
Author(s):  
Roto Roto ◽  
Marcelina Marcelina ◽  
Nurul Hidayat Aprilita ◽  
Mudasir Mudasir ◽  
Taufik Abdillah Natsir ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Reaction Mechanism ◽  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Surface Plasmon ◽  
Ag Nanoparticles ◽  
Capping Agents ◽  
Colorimetric Methods

Analysis of Fe3+ ion present in aqueous solutions is always of interests. Recently, this ion has been analyzed by colorimetric methods using colloid of silver nanoparticles (AgNPs) in capping agents of polymers. The reaction mechanism between AgNPs and Fe3+ is still subject to the further investigation. In this work, 1,10-phenanthroline was used to probe the reaction mechanism between AgNPs and Fe3+ ion in the solution. The colloids of AgNPs were prepared in the polyvinyl alcohol (PVA) solution and reacted with Fe3+. The colloid surface plasmon absorbance decreases linearly along with the increase in Fe3+ concentration. The addition of 1,10-phenanthroline to mixture changes the solution to red, indicating that the reaction produces Fe2+. This suggests that the reduction of the AgNPs absorbance is the result of oxidation of the Ag nanoparticles along with the reduction of Fe3+.

scholarly journals Acoustic, thermal and optical properties of organic based disodium tartrate salt

2021 ◽  
Vol 2 (1) ◽  
pp. 012-027
Author(s):  
M. Sathish ◽  
K. Venkataramanan ◽  
R. Padmanaban ◽  
Helan Ruth ◽  
K. Vadivel ◽  
...  
Keyword(s):  
Optical Properties ◽  
Aqueous Solutions ◽  
Internal Pressure ◽  
Ultrasonic Velocity ◽  
Relative Viscosity ◽  
Adiabatic Compressibility ◽  
Lower Percentage ◽  
Wada’S Constant ◽  
Different Temperatures ◽  
Solvent Molecules

In this work, acoustic, thermal, and optical properties were tested on the different concentrations of the Disodium Tartrate solutions. First, the viscosity studies were analyzed for the Disodium tartrate in the concentration range from 2% to 20% with different temperatures 303K, 308K, 313K, and 318K. It was noted that the relative viscosity and the activation energy of the prepared compound increase with increases in concentration and decreases with temperature increases. The properties like density and ultrasonic velocity are varied when increases the concentration of the aqueous solutions of Disodium Tartrate. In this study, the values of adiabatic compressibility show an inverse behavior when compared with ultrasonic velocity due to the interaction between solute and solvent molecules. Also observed that the inter-molecular free length is maximum for a lower percentage. The free volume for the compound is maximum at 2% and a minimum of 20%, since it reduces when the internal pressure increases. It was revealed that the classical absorption coefficient and relaxation time for Disodium Tartrate is minimum for lower percentage and minimum for a higher percentage. The interactions between the solute and solvent are confirmed through the property like specific Acoustical impedance. It was noted that the increase in internal pressure increases the concentration of the compound. The ion-solvent interaction was discussed by the relative association study, thus the values of relative association increases with an increase in concentration. The Rao’s and Wada’s constant increases linearly in aqueous solutions of Disodium Tartrate for the entire system.

Adsorption of an Acid Textile Dye from Aqueous Solutions by a Chitosan-Containing Polyvinyl Alcohol Composite Cryogel

2019 ◽  
Vol 51 (3) ◽  
pp. 199-203 ◽  
Author(s):  
G. R. Ul’yabaeva ◽  
E. A. Podorozhko ◽  
N. R. Kil’deeva ◽  
V. I. Lozinskii
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Textile Dye

Preparation of Biologically Active Compositions from Aqueous Solutions of L-Cysteine, Silver Salts and Polyvinyl Alcohol

2018 ◽  
Vol 50 (3) ◽  
pp. 161-165
Author(s):  
D. V. Vishnevetskii ◽  
V. S. Laguseva ◽  
A. I. Ivanova ◽  
S. D. Khizhnyak ◽  
P. M. Pakhomov
Keyword(s):  
Polyvinyl Alcohol ◽  
Aqueous Solutions ◽  
Biologically Active ◽  
Silver Salts
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