The Effects of Poly(amide–imide)/SiO2 Nanocomposite Containing N-Trimellitylimido-l-Methionine Diacid as a Filler on the Thermal and Morphological Properties of Poly(vinyl pyrrolidone) Composites
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DOI: 10.1002/adv.21647
Abstract: In this article, a simple ultrasonic irradiation method for preparing novel poly(vinyl pyrrolidone)/poly(amide–imide)-SiO2 nanocomposites (PVP/PAI-SiO2 NC)s is reported. For this purpose, PAI-SiO2 NC as a filler was embedded in PVP. The presence of incorporated filler… read more here.
Keywords: microscopy; vinyl pyrrolidone; sio2; filler ... See more keywords
CO2 Ionized Poly(vinyl alcohol) Electrolyte for CO2‐Tolerant Zn‐Air Batteries
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DOI: 10.1002/aenm.202102047
Abstract: CO2 poisoning of alkaline electrolytes is a critical issue that affects the energy efficiency and lifespan of Zn‐air batteries. However, few strategies have been explored to address this issue because it is challenging to block… read more here.
Keywords: air batteries; co2; pva; air ... See more keywords
Poly(vinyl alcohol) and poly(vinyl amine) blend membranes for isopropanol dehydration
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DOI: 10.1002/app.45572
Abstract: Blended membranes of hydrophilic polymers poly(vinyl alcohol) (PVA) and poly(vinyl amine) (PVAm) were prepared and crosslinked with glutaraldehyde. The prepared membranes were characterized using infrared (attenuated total reflection mode) spectroscopy, differential scanning calorimetry, X-ray diffractometry,… read more here.
Keywords: vinyl amine; water; poly; vinyl alcohol ... See more keywords
Pervaporation of toluene and iso‐octane through poly(vinyl alcohol)/graphene oxide nanoplate mixed matrix membranes: Comparison of crosslinked and noncrosslinked membranes
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DOI: 10.1002/app.45853
Abstract: Removal of aromatic compounds from fuel is an essential requirement in new environmental policies. In the present study, poly(vinyl alcohol)/graphene oxide (GO) mixed matrix membranes were prepared and applied to the separation of toluene from… read more here.
Keywords: graphene oxide; toluene; graphene; alcohol graphene ... See more keywords
Methamidophos removal from aqueous solutions using a super adsorbent based on crosslinked poly(vinyl alcohol) hydrogel
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DOI: 10.1002/app.45964
Abstract: 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… read more here.
Keywords: removal; crosslinked poly; methamidophos; vinyl alcohol ... See more keywords
Thermoresponsive and biocompatible poly(vinyl alcohol)‐graft‐poly(N,N‐diethylacrylamide) copolymer: Microwave‐assisted synthesis, characterization, and swelling behavior
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DOI: 10.1002/app.45969
Abstract: Novel thermoresponsive poly(vinyl alcohol)-graft-poly(N,N-diethylacrylamide) (PVA-g-PDEAAm) copolymers were prepared by microwave-assisted graft copolymerization using a potassium persulfate/N,N,N′,N′-tetramethylethylenediamine (KPS/TEMED) initiator system. The structures of PVA-g-PDEAAm copolymers were characterized by 1H-NMR, Fourier transform infrared spectroscopy, differential scanning calorimetry/thermogravimetric… read more here.
Keywords: graft; poly; swelling behavior; vinyl alcohol ... See more keywords
Melt‐processable and self‐healing poly(vinyl alcohol) elastomer containing diol groups in the side chain
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DOI: 10.1002/app.46050
Abstract: A 3-amino-1,2-propane diol functionalized poly(vinyl alcohol) elastomer (PVA–COO–AP) with melt processability and self-healing properties was prepared by chemical graft modification, that is, a poly(vinyl alcohol) (PVA) carboxylation and carbodiimide reaction. Unlike that of conventional PVA… read more here.
Keywords: diol; vinyl alcohol; alcohol elastomer; pva ... See more keywords
Structure and properties of porous poly(vinyl alcohol) hydrogel beads prepared through a physical–chemical crosslinking method
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DOI: 10.1002/app.46402
Abstract: Porous poly(vinyl alcohol) (PVA) hydrogel beads (PC beads) are potential microorganism carriers applied in wastewater treatment industries. However, improving the mechanical strength and stability of traditional PVA hydrogel beads in water is still a challenge.… read more here.
Keywords: porous poly; hydrogel; vinyl alcohol; chemical ... See more keywords
Fabrication and characterization of poly(vinyl alcohol)—Glycerol—Spinel ferrites flexible membranes
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DOI: 10.1002/app.48821
Abstract: This work was supported by Qatar University under grant number QUCG?CAS?20182019?1. The FTIR, DSC, TGA, SEM, and EDS measurements were accomplished in the Central Laboratories unit at Qatar University. read more here.
Keywords: fabrication characterization; characterization poly; glycerol spinel; vinyl alcohol ... See more keywords
Water‐soluble astaxanthin and silver enriched poly(vinyl alcohol)/silk fibroin crosslinking electrospun nanofiber for wound dressing
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DOI: 10.1002/app.55518
Abstract: The aim of this work is to fabricate a novel electrospun poly(vinyl alcohol) (PVA)/silk fibroin (SF) nanofibrous membrane containing astaxanthin (ASTA) and silver (Ag) nanoparticles as potential wound dressing. Since ASTA is typically liposoluble, the… read more here.
Keywords: spectroscopy; water; membrane; silk fibroin ... See more keywords
Effect of dialdehyde starch on cassava starch/poly(vinyl alcohol) blends fabricated by melt mixing method with glycerol plasticized
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DOI: 10.1002/app.55932
Abstract: Starch is considered an ideal alternative to petroleum‐based plastics. However, the application of thermoplastic starch (TPS), which produced from cassava starch plasticized with glycerol, is limited by its hydrophilic, poor mechanical properties, and inadequate processability.… read more here.
Keywords: starch; cassava starch; starch pva; dialdehyde starch ... See more keywords