Novel Pva Proton Conducting Membranes Doped With Polyaniline Generated by in-Situ Polymerization

Albu, Ana‐Maria; Maior, Ioana; Nicolae, Cristian‐Andi; Bocăneală, Florentina Lavinia

doi:10.1016/j.electacta.2016.06.098

Cited by 36 publications

(20 citation statements)

References 54 publications

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“…The degradation mechanism consists in a minor dehydration (40–150 °C) in the first step followed by a major mass loss (45%) attributed to structural decomposition by a chain stripping reaction. Analyzing the maximum temperature of this second degradation (313 °C) was compared with the data reported by Albu et al . For pure PVA, in which this mass loss has the maximum value at 222 °C (35%), it was possible to conclude that the crosslinking of the PVA polymer with MA generated a gain in the thermal stability.…”

Section: Resultsmentioning

confidence: 88%

“…The last stage at 420 °C was attributed to the chemical degradation process resulting from the breaking of the intermolecular ester linkages, a product of the crosslinking from CLPHMA‐20. According to Albun et al . if PVA is heated above 120 °C, water is eliminated to produce conjugated double bonds, and it may lead to the formation of ester crosslinks; i.e., on heating PVA above the decomposition temperature, the polymer starts a rapid chain stripping elimination of H 2 O.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel

Valdés

Ávila-Salas

Maricán

et al. 2017

J of Applied Polymer Sci

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This study describes the absorption of methamidophos (MMP) from aqueous solution by crosslinked poly(vinyl alcohol) (PVA) hydrogel synthesized using malic acid (MA) as a crosslinker (CLPHMA). The prepared hydrogels were characterized by FTIR spectroscopy, scanning electron microscopy, and the thermal properties were studied by using thermal gravimetric analysis. Also, the swelling index as a function of PVA:MA composition and pH were studied. An in silico rational study, which involved all‐atom molecular dynamics simulations of PVA:MA systems in proportions 10:2, 10:4, and 10:6 was performed. The in silico studies concluded that the more suitable crosslinking degree for MMP pesticide removal is with the 20% (wt %) of crosslinker (CLPHMA‐20). The experimental analysis of MMP removal with CLPHMA was performed as well. It was found that the prepared CLPHMA‐20 had a great efficiency to recover around 86% of MMP from their solutions. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45964.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel

Valdés

Ávila-Salas

Maricán

et al. 2017

J of Applied Polymer Sci

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“…Great efforts have been made to improve the performance and durability of the materials used as electrodes and electrolyte of such devices. As low‐cost and flexible materials, conducting polymer (particularly polyaniline, PANI) based composite gels have received great attention to be used as the electrode material in supercapacitors . Li et al.…”

Section: Introductionmentioning

confidence: 99%

“…As low-cost and flexible materials, conducting polymer (particularly polyaniline, PANI) based composite gels have received great attention to be used as the electrode material in supercapacitors. [7][8][9][10][11][12][13][14][15][16][17] Li et al have reported the supramolecular assembly of polyvinyl alcohol (PVA) and PANI for fabrication of flexible supercapacitors with 13.6 Whkg À 1 energy density. [9] In another work, graphene oxide was mixed with a composite gel to make supercapacitor electrodes with the specific capacitance of 438.8 Fg À 1 .…”

Section: Introductionmentioning

confidence: 99%

A Polyaniline‐Based Redox‐Active Composite Gel Electrolyte with Photo‐Electric and Electrochromic Properties

et al. 2019

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A polyaniline (PANI)‐based gel material with a redox‐active nature has demonstrated unique charge storage, photovoltaic, and electrochromic properties in the bulk of the gel. The specific capacitance in the volume of the gel was measured to be 428.9 mF g−1. Also, a hybrid device for concurrent solar energy harvesting and charge storage was made simply by placing a layer of the gel between a TiO2 coated electrode and a carbon electrode. The hybrid device showed 137 mV open circuit voltage under the light condition with only 10 mV voltage drop in 600 s after cessation of light. The electrochromic property of the composite gel was also studied in a device made of two transparent electrodes. The results showed 64 % transmittance at 564 nm and zero transmittance when the cell was biased at 0.0 V and 2.0 V, respectively. The photoelectric property and the redox‐active nature of the gel suggest existence of both ionic and electronic conductions through the electrolytes. The results are encouraging to further customize the composite gel for various applications, including supercapacitors, solar cells, photoactive supercapacitors, and electrochromic windows.

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“…Poly(vinyl alcohol) (PVA), a hydrophilic semicrystalline polymer bearing a hydroxyl‐rich surface, possesses excellent properties such as high chemical resistance, biocompatibility, and flexibility . It has drawn much attention and was used widely in scientific fields and commercial applications, such as packaging materials, surgical devices, coating materials, functional membranes .…”

Section: Introductionmentioning

confidence: 99%

Dual‐bonding structured ternary composite film of poly(vinyl alcohol)–boric acid–nanodiamond

Zhao

et al. 2017

J of Applied Polymer Sci

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Ternary composite films of poly(vinyl alcohol) (PVA), boric acid (BA), and detonation nanodiamond (DND) were prepared by aqueous solution method. Because of its excellent mechanical/thermal properties and low friction coefficient, DND is expected to offer PVA film superior performance if the puzzles of particle agglomeration in polymer matrix and fragile interface reaction between DND and PVA can be settled. BA was used as a crosslinking agent to form a strong network structure between DND and PVA. Investigation on microstructure of PVA/BA/DND films and bonding mechanisms therein shows that BA, DND, and PVA may crosslink by oxo‐bridges owing to the interaction of hydroxyl groups. The Young's modulus (E) of composite films was enhanced by nearly 3.3 times with only 0.8 wt % DND loading, and the antiwear, thermal stability, and waterproof properties can be significantly improved after the crosslinking. Meanwhile, the transparency of composite films can be well preserved even with large DND content. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45449.

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Novel Pva Proton Conducting Membranes Doped With Polyaniline Generated by in-Situ Polymerization

Cited by 36 publications

References 54 publications

Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel

Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel

A Polyaniline‐Based Redox‐Active Composite Gel Electrolyte with Photo‐Electric and Electrochromic Properties

Dual‐bonding structured ternary composite film of poly(vinyl alcohol)–boric acid–nanodiamond

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