Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO<sub>2</sub>, PVA/Sulfosuccinic Acid (SSA) and PVA/SiO<sub>2</sub>/SSA Membranes: A Comparative Study

Remiš, Tomáš; Bělský, Petr; Andersen, Shuang Ma; Martı́n, Tomás; Kadlec, J.; Kovařík, Tomáš

doi:10.1080/00222348.2019.1697023

Cited by 17 publications

(15 citation statements)

References 45 publications

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“…PVA can be used in different ways, the most common being in the form of membrane [14,17] and hydrogel [8,9,16] at a low cost [10,12]. The physical and chemical properties of PVA depend on synthetic conditions and the degree of hydrolysis of the polymer itself.…”

Section: Introductionmentioning

confidence: 99%

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

et al. 2021

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Poly(vinyl alcohol) (PVA) in multifilament and braided yarns (BY) forms presents great potential for the design of numerous applications. However, such solutions fail to accomplish their requirements if the chemical and thermomechanical behaviour is not sufficiently known. Hence, a comprehensive characterisation of PVA multifilament and three BY architectures (6, 8, and 10 yarns) was performed involving the application of several techniques to evaluate the morphological, chemical, thermal, and mechanical features of those structures. Scanning electron microscopy (SEM) was used to reveal structural and morphological information. Differential thermal analysis (DTA) pointed out the glass transition temperature of PVA at 76 °C and the corresponding crystalline melting point at 210 °C. PVA BY exhibited higher tensile strength under monotonic quasi-static loading in comparison to their multifilament forms. Creep tests demonstrated that 6BY structures present the most deformable behaviour, while 8BY structures are the least deformable. Relaxation tests showed that 8BY architecture presents a more expressive variation of tensile stress, while 10BY offered the least. Dynamic mechanical analysis (DMA) revealed storage and loss moduli curves with similar transition peaks for the tested structures, except for the 10BY. Storage modulus is always four to six times higher than the loss modulus.

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Section: Introductionmentioning

confidence: 99%

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

et al. 2021

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“…It is clear from the table that that, the o‐Ps lifetime τ 3 and free volume holes have no significant variation at low concentrations of SSA up to 15 wt.% after that it starts to increase with increasing the load of SSA. The incorporation of SO 3 groups into the polymer chains will lead to modification of the polymer's chain conformation and packing 6 and hence the degree of crystallinity will be decreased as reported by Remiš et al 32 This explains the increase of free volume content by increasing SSA percentage in thermally crosslinked PVA. As also be noticed from Table 2), the o‐Ps intensity I 3 decreases with increasing the SSA content.…”

Section: Resultsmentioning

confidence: 80%

Non‐fluorinated PVA/SSA proton exchange membrane studied by positron annihilation technique for fuel cell application

Awad

Abdel-Hady

Hamed

et al. 2021

Polymers for Advanced Techs

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Poly(vinyl alcohol) (PVA) with sulfosuccinic acid (SSA) membrane was prepared with different concentrations of SSA (wt.%) and thermally crosslinked successfully at 100 °C. Ion exchange capacity and proton conductivity were found to increase with increasing the SSA content in the meantime the water uptake and hydration number were declined with the rise in the degree of sulfonation. This anomalous behavior was discussed based on Nerst equation parameters which confirm the results discussion with enhancement with data of contact angle. Tensile strength results suggest the deterioration of the PVA/SSA membranes with increasing SSA content because of the chemical reaction of SSA and PVA chains. Positron annihilation results were found to enhance the electrochemical‐mechanical results of the membranes. The o‐Ps lifetime was found to increase with increasing degree of sulfonation while SO3 was working as an inhibitor agent of PS formation as o‐Ps Intensity was declined with an elevated percentage of SSA content. The o‐Ps lifetime as a function of temperature for different PVA/SSA membranes having different SSA content increased with increasing SSA content. Furthermore, the glass transition temperature of PVA/SSA membranes was found to decrease with increasing the SSA content. The results were discussed based on the free volume theory.

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“…Interestingly, SSA‐crosslinked membrane (PVA/SSA) showed higher proton conductivity compared to other nanomaterials‐incorporated SSA‐crosslinked PVA (PVA/SSA‐based nanocomposite) membranes. This is because of higher hydration, that is, higher water uptake by the membrane; however, this higher hydration also led to greater mechanical instability of the membranes 77 . Blend nanocomposite membrane comprising of sulfonated poly(etheretherketone) (SPEEK), PVA and SiO 2 (i.e., tetraethyl orthosilicate) has been fabricated by sol–gel process and solution casting 67 .…”

Section: Pva‐based Membranes For Fuel Cellsmentioning

confidence: 99%

“…Ref. : PVA/MPPIS; 81 PVA/nZnO; 75 PVA/DBEG‐G‐SiO 2 ; 82 PVA/SSA/GO; 83 PVA/Sulfonated nSiO 2 /GA; 70 PVA/SiWA/nSiO 2 /SSA; 73 SPEEK/PVA@GO‐NF; 66 PVA/PAMPS‐ g ‐FSN/GA; 84 Propane sultone/PVA/SSA/GO; 23 PVA/PAN‐ co ‐PSSA/PAMPS‐Si; 68 PVA/TEOS/SSA; 85 PVA/nSiO 2 /SSA; 86 PVA/SCNT/SSA; 69 PVA/SGO; 74 H 3 PO 4 ‐imbibed PAM/PVA; 87 HPA/PVA‐ g ‐Aam (GA crosslinked); 88 PVA/PSSA‐SiO 2 /SSA/GA; 71 PVA/SSA; 77 SPEEK/PVA/TEOS; 67 PPVA/PHB/SiO 2 ‐P NPs; 80 PVA/SPANi‐GO; 89 PVA/PAMPS/ZIF; 78 and PVDF/PPVA/nTiO 2 76 . Abbreviations: Aam, acrylamide; DBEG, 1,4‐diglycidyl butane ether; FSN, fumed silica nanoparticles; GA, glutaraldehyde; GO, graphene oxide; HPA, heteropolyacid (H 3 PW 12 O 40 ); MPPIS, liquid crystal: 1‐methyl‐3‐[6‐[4‐(trans‐4‐pentylcyclohexyl)‐ phenoxy]hexyl]imidazolium hydrogen sulfate; PAM, polyacrylamide; PFSA, perfluorosulfonic acid; PPVA, phosphonated PVA; PVDF, poly(vinylidene difluoride); SCNT, sulfonated carbon nanotubes; SiO 2 ‐P NPs: phosphonated silica nanoparticles; SiWA, silicotungstic acid; SPEEK, sulfonate poly(ether ketone); SSA, sulfosuccinic acid; TEOS, tetraethyl orthosilicate; ZIF, zeolite‐imidazole framework…”

Section: Pva‐based Membranes For Fuel Cellsmentioning

confidence: 99%

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Choudhury

Gohil

Dutta

2021

Polymers for Advanced Techs

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Clean water and energy are two of the most important requirements for human survival. Membrane‐based filtration represents one of the advanced technologies involved in water decontamination; while, polymer electrolyte membrane fuel cells (PEMFCs) are among the frontrunners in the alternative and renewable energy domain. It is evident that membrane‐based processes provide sustainable solution to the ever‐increasing demand of energy and clean water. Over the years, it has been realized that synthetic poly(vinyl alcohol) (PVA) is one of the potential candidates for the development of membranes, owing to its hydrophilicity, barrier property, film forming ability, crosslinking ability, biodegradability, and low cost. These properties have been widely explored for the fabrication of polymer electrolyte membranes for PEMFCs, in order to improve the ionic conductivity and methanol barrier property, as well as, to reduce the membrane fabrication cost. On the other hand, high water solubility and film forming characteristics of PVA have been used for the formation of water treatment membranes, for enhancing the antifouling property and chemical stability. This review provides in‐depth discussions and analyses on the structure and properties of various PVA‐based copolymers, and their applications as membrane materials for PEMFCs (including direct methanol and alkaline fuel cells) and water remediation.

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Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO₂, PVA/Sulfosuccinic Acid (SSA) and PVA/SiO₂/SSA Membranes: A Comparative Study

Cited by 17 publications

References 45 publications

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

Non‐fluorinated PVA/SSA proton exchange membrane studied by positron annihilation technique for fuel cell application

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

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Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO2, PVA/Sulfosuccinic Acid (SSA) and PVA/SiO2/SSA Membranes: A Comparative Study

Cited by 17 publications

References 45 publications

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

Thermal, Mechanical and Chemical Analysis of Poly(vinyl alcohol) Multifilament and Braided Yarns

Non‐fluorinated PVA/SSA proton exchange membrane studied by positron annihilation technique for fuel cell application

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

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Preparation and Characterization of Poly(Vinyl Alcohol) (PVA)/SiO₂, PVA/Sulfosuccinic Acid (SSA) and PVA/SiO₂/SSA Membranes: A Comparative Study