To improve Li storage capacity and the structural stability of Ti3C2 MXene-based electrode materials for lithium-ion batteries (LIBs), a facile strategy is developed to construct three-dimensional (3D) hierarchical porous Ti3C2/bimetal-organic framework (NiCo-MOF) nanoarchitectures as anodes high-performance LIBs. 2D nanosheets are coupled with NiCo-MOF nanoflakes induced by hydrogen bonds form 3D Ti3C2/NiCo-MOF composite films through vacuum-assisted filtration technology. The morphology...

The degradation of poly(hydroxyethyl methacrylate), PHEMA obtained by γ -radiation induced polymerization HEMA in aqueous solution, was studied. polymer a gel type and insoluble common organic solvents. DSC thermogram the gave Tg value at 88.2°C an endothermic peak showed further or crosslinking 110–160°C. observed TGA depolymerization type. However, FT-IR fragments no monomer, which degraded further. monomer studied GC-MS method. Similar results were also observed.

Abstract In this study, 2‐hydroxyethyl acrylate (HEA) was polymerized to obtain polymers that can be used as hydrogel and copolymerized for biomedical applications. Bulk, solution, atom transfer radical polymerization (ATRP) techniques at different temperatures were applied. The in bulk form carried out vacuum open atmosphere. curves showed autoacceleration mechanism the limiting conversion 100%. obtained insoluable most common solvents because of high molecular weights strong intermolecular...

A series of poly(methyl methacrylate-co-hydroxyethyl methacrylate) (PMMA-co-PHEMA), copolymers were synthesized by an emulsion polymerization technique. Copolymer compositions determined FT-IR and 1H-NMR spectroscopy. It was found that comonomer ratios used in the recipes comparable within actual copolymers. Glass transition temperatures (Tg) PMMA-co-PHEMA varied from 119°C to 100°C increasing HEMA content. Thermogravimetric analysis showed stable up 330°C. High intrinsic viscosity values...

Fluorescent conjugated polymers have been used as excellent optical sensing materials to develop high sensitive and selective sensors by using their large extinction coefficient fluorescence quantum yield. Thanks these features, are in a wide range of applications, including metal ion detection. In this study, dansyl-substituted fluorescent polycarbazole was synthesized electrochemical polymerization 9H-carbazol-2-yl 5-(dimethylamino)naphthalene-1-sulfonate (CZD). CZD characterized 1H-NMR,...

Abstract A porous polylactic acid (PLA) film was investigated as a separator for supercapacitors (SCs) and compared with commercial separators, example, NKK‐MPF30AC Celgard 2400. The PLA fabricated via facile phase inversion method, the cross‐sectional scanning electron microscope images of exhibited highly interconnected morphology ion diffusion. surface modification separators performed by radio frequency (RF) air plasma to improve wettability. enhanced water uptake swelling properties...

The porous polylactic acid matrix has been particularly developed as a scaffold in tissue engineering, drug loading, and wound dressing. However, the loading of active chemical compounds is challenging due to its highly hydrophobic nature lack functional groups for bonding. Plasma treatment fast, heat chemical-free solution increase hydrophilicity by oxidative physical etching. In this study, PLA was obtained polyethylene glycol pore formation agent treated radiofrequency (RF) air plasma....

This study investigated the thermal properties of Oriental beech (Fagus orientalis) treated with (NH4)2HPO4, K2HPO4, NH4Cl and (NH4)2SO4 salts their mixtures (1:1; w/w) aqueous solutions at 3% concentrations. The effects different inorganic fire retardants on degradation characteristics wood samples were evaluated by thermogravimetric analysis (TGA). Based TGA curve for untreated wood, weight loss takes place three distinct steps. impregnation resulted in higher char yields additional steps...

This study involved the creation of highly porous PLA scaffolds through porogen/leaching method, utilizing polyethylene glycol as a porogen with 75% mass ratio. The outcome achieved interconnected structure thickness 25 μm. To activate scaffold’s surface and improve its hydrophilicity, radiofrequency (RF) air plasma treatment was employed. Subsequently, furcellaran subjected to sulfation or carboxymethylation deposited onto RF treated surfaces intention improving bioactivity. Surface...

Abstract Novel polyacrylonitrile (PAN)‐ co ‐poly(hydroxyethyl acrylate) (PHEA) copolymers at three different compositions (8, 12, and 16 mol % PHEA) their homopolymers were synthesized systematically by emulsion polymerization. Their chemical structures elucidated Fourier transform infrared, 1 H‐NMR, 13 C‐NMR spectroscopy. Intrinsic viscosity measurements revealed that the molecular weights of quite enough to form ductile films. The influence molar fraction hydroxyethyl acrylate on...

Abstract Copolymers of poly(acrylonitrile‐ co ‐ethyl methacrylate), P(AN‐EMA), with three different EMA content and parent homopolymers were synthesized by emulsion polymerization. The chemical composition copolymers identified FTIR, 1 H‐NMR 13 C‐NMR spectroscopy. thermal properties modified changing the in copolymer compositions. Various amounts LiClO 4 salt loaded (PAN‐ ‐PEMA) films prepared solution casting. dielectric these at temperatures frequencies investigated. It was found that...

Poly(acrylonitrile-co-isobutyl methacrylate), PAN-co-PIBMA, and poly(acrylonitrile-co-methyl PAN-co-MMA copolymers are synthesized by emulsion polymerization. The structural characterization is done FTIR 1H-NMR spectroscopy thermal analyses performed thermogravimetric analysis (TGA). After various amounts of LiClO4 salt loading into copolymer films, the dielectric properties these films at different temperatures frequencies determined. effects methacrylate groups content on investigated. It...

Abstract A polydimethylsiloxane (PDMS) macroazoinitiator was synthesized from bis(hydroxyalkyl)‐terminated PDMS and 4,4′‐azobis‐4‐cyanopentanoic acid by a condensation reaction. The bifunctional macroinitiator used for the block copolymerization of ethyl methacrylate (EMA) 2‐(trimethylsilyloxy)ethyl (TMSHEMA) monomers. poly(DMS‐ ‐EMA) ‐TMSHEMA) copolymers thus obtained were characterized using Fourier transform infrared 1 H NMR spectroscopy differential scanning calorimetry. After...

This study presents the improvement in flame retardancy of wood polymer composites (WPCs) by boron phosphate (BPO4) additive. The WPCs were manufactured phenol formaldehyde and flour Oriental beech (Fagus orientalis L.) using compression molding. Polydiphenylmethane-4,4’-diisocyanate (PMDI) was also added to enhance compatibility hydrophilic hydrophobic resin. strengthening interfacial adhesion PMDI incorporation resulted better mechanical (flexural) physical (water absorption,...

The high energy density and superior safety of solid-state lithium metal batteries (SSLMBs) has been recognized as a next-generation storage system with great attention. Garnet-type oxide electrolytes, especially...

The improved dispersion of clay minerals has an essential role for polymer nanocomposite manufacturing. In this regard, different organomodifications have been attempted to obtain intercalated/exfoliated structures composites. present study, Çanakkale bentonite was organically modified by four quaternary ammonium salts: tetramethylammonium chloride (TMAC), hexadecylpyridinium (HDPC), hexadecyltrimethylammonium bromide (HDAB), phenyltrimethylammonium (PMAC). Fourier transform infrared...

Ö ZK ısmen bozunabilen malç filmleri hazırlamak için az yoğunluklu polietilen (AYPE), termoplastik nişasta (TPN) ile çift vidalı ekstruder yardımıyla karıştırıldı.Bu çalışmada, demir(III) stearat ve manganez(II) pro-oksidan olarak kullanılmışve farklı pro-oksidanların karışımların bozunması üzerindeki etkisi incelenmiştir

The fabrication of self-standing porous carbon foam nanostructures for trapping sulfur in Lithium–Sulfur (Li-S) batteries was aimed this work. Nitrogen doped reduced graphene oxide/acid treated MWCNT based cathode material prepared and characterized by different techniques. GO/aMWCNT organofoam were first polymerized in-situ with aniline pyrrole then carbonized at 800°C under argon atmosphere. purpose the carbonization to improve conductivity matrix dope it nitrogen using PANI PPy as a...

A series of poly(acrylonitrile-co-hexyl methacrylate), PAN-co-PHMA, copolymers with various hexyl methacrylate (HMA) contents were synthesized by emulsion technique. The incorporation HMA units into the was confirmed Fourier transform infrared and proton nuclear magnetic resonance (1H-NMR) spectroscopy. Glass transition temperatures (Tg) thermal decomposition determined differential scanning calorimetry thermogravimetric analysis. Tg lowered monotonically increasing content, while...