scholarly journals Effect of Starch Oxidation Degree on the Properties of Hydrogels from Dialdehyde Starch and Polyvinyl Alcohol

2020 ◽  
Vol 5 (6) ◽  
pp. 1372-1380
Author(s):  
Jahel Desire Carrera ◽  
Daniela Alejandra Viteri Narváez ◽  
Marco Leon ◽  
José Francisco Alvarez-Barreto
Keyword(s):  
Polyvinyl Alcohol ◽  
Dialdehyde Starch ◽  
Oxidation Degree ◽  
Starch Oxidation

scholarly journals Keratin/Polyvinyl Alcohol Blend Films Cross-Linked by Dialdehyde Starch and Their Potential Application for Drug Release

Polymers ◽  
2015 ◽  
Vol 7 (3) ◽  
pp. 580-591 ◽  
Author(s):  
Yao Dou ◽  
Buning Zhang ◽  
Ming He ◽  
Guoqiang Yin ◽  
Yingde Cui ◽  
...  
Keyword(s):  
Drug Release ◽  
Polyvinyl Alcohol ◽  
Potential Application ◽  
Dialdehyde Starch ◽  
Blend Films

Cryogels based on composition chitosan–polyvinyl alcohol: synthesis and properties

2019 ◽  
Vol 5 (4) ◽  
pp. 56-63
Author(s):  
E.V. Dikhtiaruk ◽  
◽  
V.V. Paientko ◽  
A.K. Matkovsky ◽  
Yu.N. Nichiporuk ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Alcohol Synthesis

Synthesis and Characterisation of Polyaniline-Polyvinyl Alcohol-NiO Nanocomposite Film

2011 ◽  
Vol 3 (8) ◽  
pp. 91-93 ◽  
Author(s):  
Sindhu Honmute ◽  
◽  
Arunkumar Lagashetty ◽  
A. Venkataraman A. Venkataraman
Keyword(s):  
Polyvinyl Alcohol ◽  
Nanocomposite Film

Degradable properties of compositions based on polyethylene and plasticized polyvinyl alcohol

2019 ◽  
Vol 41 (4) ◽  
pp. 246-252
Author(s):  
T.V. Dmytriieva ◽  
◽  
S.K. Krymovska ◽  
V.I. Bortnytskyi ◽  
S.M. Kobylinskyi ◽  
...  
Keyword(s):  
Polyvinyl Alcohol

Improvement of Ti/RuO2–IrO2 Anode Lifetime and Electrocatalytical Properties by Using an Eco-Friendly Thermal Decomposition Method Using Polyvinyl Alcohol as Solvent

2019 ◽  
Author(s):  
Charlys Bezerra ◽  
Géssica Santos ◽  
Marilia Pupo ◽  
Maria Gomes ◽  
Ronaldo Silva ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Polyvinyl Alcohol ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Pechini Method ◽  
Low Cost ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Calcination Temperatures ◽  
Service Lifetime

<p>Electrochemical oxidation processes are promising solutions for wastewater treatment due to their high efficiency, easy control and versatility. Mixed metal oxides (MMO) anodes are particularly attractive due to their low cost and specific catalytic properties. Here, we propose an innovative thermal decomposition methodology using <a>polyvinyl alcohol (PVA)</a> as a solvent to prepare Ti/RuO<sub>2</sub>–IrO<sub>2</sub> anodes. Comparative anodes were prepared by conventional method employing a polymeric precursor solvent (Pechini method). The calcination temperatures studied were 300, 400 and 500 °C. The physical characterisation of all materials was performed by X-ray diffraction and scanning electron microscopy coupled with energy dispersive spectroscopy, while electrochemical characterisation was done by cyclic voltammetry, accelerated service lifetime and electrochemical impedance spectroscopy. Both RuO<sub>2</sub> and IrO<sub>2</sub> have rutile-type structures for all anodes. Rougher and more compact surfaces are formed for the anodes prepared using PVA. Amongst temperatures studied, 300 °C using PVA as solvent is the most suitable one to produce anodes with expressive increase in voltammetric charge (250%) and accelerated service lifetime (4.3 times longer) besides reducing charge-transfer resistance (8 times lower). Moreover, the electrocatalytic activity of the anodes synthesised with PVA toward the Reactive Blue 21 dye removal in chloride medium (100 % in 30 min) is higher than that prepared by Pechini method (60 min). Additionally, the removal total organic carbon point out improved mineralisation potential of PVA anodes. Finally, this study reports a novel methodology using PVA as solvent to synthesise Ti/RuO<sub>2</sub>–IrO<sub>2</sub> anodes with improved properties that can be further extended to synthesise other MMO compositions.</p>

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

Crystallization Behavior of Polyvinyl Alcohol with 1,2-Diol Side-Chains

2018 ◽  
Vol 33 (2) ◽  
pp. 234-244 ◽  
Author(s):  
M. Shibutani ◽  
T. Yamamoto ◽  
K. Inoue ◽  
K. Tokumitsu
Keyword(s):  
Polyvinyl Alcohol ◽  
Crystallization Behavior ◽  
Side Chains
Sign in / Sign up

Export Citation Format

Share Document