The use of biodegradable polymers to mitigate the environmental pollution is one hot topics research in recent years. current work presents graphene oxide (GO) nanoparticles functionalized with two types alkylamines (decylamine (DA) and octadecylamine (ODA)) synthesized at different temperatures; 25 °C (GODA1 GOODA1) 80 (GODA2 GOODA2), which were used as fillers prepare PLA nanocomposites their barrier, mechanical, thermal properties studied. elemental analysis showed 2 wt% 4 nitrogen...

This study evaluated the stability and reusability of amino-functionalized nanocellulose aerogels as CO2-adsorbent materials. The modified aerogels, synthesized via a controlled silylation using N-[3-(trimethoxysilyl) propyl] ethylenediamine (DAMO), demonstrated excellent thermal up to 250 °C (TGA) efficient CO2 adsorption through chemisorption, which was main mechanism. performance assessed both isotherms decay pressure technique, revealing that capacity increased with higher amino group...

Abstract In recent years, biodegradable plastics have gained significant attention as a strategy to reduce environmental contamination. However, achieving uniform dispersion of magnetic nanoparticles (MNPs) in polymers remains challenging due aggregation. Core‐shell encapsulation has emerged an effective method address this issue. study, nickel (Ni) (NPs) were supported on thermally reduced graphene oxide (TrGO), at two distinct temperatures (600 and 1000°C), used nano‐fillers fabricate PLA...

Abstract This study presents the influence of functionalized sepiolite and electron beam irradiation on structural physicochemical properties high density polyethylene (HDPE)/starch blends. HDPE/Starch blends containing varying amounts [from 2 to 6 parts per hundred (phr) resins] were prepared in an internal mixer subjected irradiation. The analysis nanocomposites revealed interaction among incorporated components. morphological depicted void‐free dispersion additives as well improvement...

Bioactive 1,8-dioxo-octahydroxanthene analogs were synthesized by employing Amberlite IR-120H as a recyclable heterogeneous catalyst in acetonitrile. Their vitro cytotoxicities and leishmanicidal activities evaluated. The synthetic protocol involves Knoevenagel condensation followed Michael addition finally cyclodehydration of dimedone with an aldehyde. Among the solvents used for this protocol, acetonitrile gave best results terms isolated yield. Being one-pot reaction, presents several...

A new class of functionalized imidazolium-based Task-Specific Ionic Liquids (TSILs) is designed as low-cost bifunctional organocatalyst. New alkoxymethylimidazolium ILs are efficiently synthesized under solvent free conditions and extensively characterized by physical spectral studies. The newly demonstrate excellent catalytic potential in condensation reactions high importance, such the Biginelli reaction for synthesis medicinally important dihydropyrimidiones. effect alkoxy group...

ABSTRACT Semi‐conducting polyethylene (PE) nanocomposites with outstanding magnetic properties at room temperature were synthesized. These exceptional properties, for a diamagnetic and insulating matrix as PE, obtained by polymerizing ethylene in the presence of catalytic system formed metallocene catalyst supported on mixture reduced graphene oxide (rGO) carbon nanotubes encapsulated iron (CNT‐Fe). It was used constant very low amount CNT‐Fe, vapor chemical deposition using ferrocene. The...

Abstract interesting properties of magnetic nanocomposites have attracted attention both academic and industrial researchers. In this work, thermal, mechanical, morphological, polyethylene (PE) were inspected using carbon‐based fillers (CNi, CCo, CFe). The melt mixing method was employed to prepare the small amounts filler ranging up 2 wt%. Wood sawdust pyrolysis produces carbonized material activated by Ni, Co, or Fe salts used as filler. structural analysis carried out Fourier transform...

Mitigating the global warming caused by CO2 emissions from anthropogenic sources is a hot research topic in current era. The high cost and difficulty handling liquid solvent absorbents for capture are main barriers to their industrial application. Earth-abundant solid sorbents favorable candidates separation, offering low energy penalty desorption. Here, Polysulfone (PSF) nanocomposites were prepared simple solution blending. carbon-based fillers, namely carbon nanotubes (CNT), activated...

In the present study, effect of Ni, Co, and Fe carbon‐based magnetic fillers (Ni‐C, Co‐C, Fe‐C) was investigated on magnetic, mechanical, thermal, morphological properties polyethylene nanocomposites. The in situ polymerization technique used to prepare nanocomposites from ethylene monomer introducing small amounts filler ranging 1 2 wt.%. metal‐carbonized were obtained by pyrolysis wood sawdust activated or salts. X‐ray diffraction showed that nanometric size. Thermogravimetric analysis...

In the present study, polysulfone (PSF)-activated carbon nanocomposites were synthesized by a melt mixing technique. Here, 2 wt% activated (CA, CA-Ni, and CA-Co) was used as filler, effects on thermal, mechanical, magnetic, morphological, dioxide capture properties studied. The pyrolysis of wood sawdust produced materials Co and/or Ni salt. thermal degradation amount metal in investigated thermogravimetric analysis. maximum temperature showed an improvement up to 3 °C, while initial...

The wood ash, generated at a large scale globally, is often landfilled or open dump, which creates land shortage and environmental issues. Incorporating by-products in asphalt materials helped improve the performance mitigate stated problems, but little work was conducted to evaluate effectiveness of incorporating ashes Nanoscale. Therefore, aim study effects different Nano on binder mixtures. mechanically-processed were used produce mixtures 1%, 3%, 5% by weight. Initially, X-ray...

ABSTRACT The magnetic and conducting properties of polypropylene (PP)–reduced graphene oxide (rGO)–carbon nanotube with iron (CNT‐Fe) nanocomposites prepared by melt mixing were studied. CNT‐Fes synthesized the pyrolysis sawdust, rGO was produced from graphite flakes. combination these two materials used to produce in a diamagnetic insulating PP matrix addition small amount filler. A constant minute sufficient introduce characteristics matrix. variable used, percolation threshold achieved...

An efficient method has been developed for the synthesis of β-enaminones under solvent-free reaction conditions using PPA-SiO2 as catalyst. The yields were good to excellent (up 90%). This methodology affords high selectivity and tolerance a variety different functional groups present on both aromatic aliphatic amines. In addition, is environmentally benign cost-effective due absence solvent easy work-up.

Magnetic polypropylene (PP) nanocomposites with different loadings (from 0.5 to 20 wt %) of carbon nanotubes iron (CNT‐Fe) were fabricated using the melt‐mixing method. The synthesized by pyrolysis sawdust from furniture industry. morphological characterization shows homogenous dispersion filler in polymer matrix. addition only % CNT‐Fe already results ferromagnetic behavior diamagnetic thermal properties investigated thermogravimetric analysis and differential scanning calorimetry. show an...

Abstract The focus of the present work is to prepare low‐density polyethylene (LDPE)‐graphene (G) nanocomposite films with improved gas barrier properties by melt extrusion. A narrow range graphene (0.05–0.3 wt.%) as filler was used in LDPE matrix. rheological analysis indicating that there no significant influence on chains mobility addition filler. nanocomposites percent crystallinity ( X c %) increase from 25.0% 31.6% compared neat LDPE. X‐ray diffractogram shows a change width half...

This study evaluated the stability and reusability of amino-functionalized nanocellulose aero-gels as CO₂ adsorbent materials. The modified aerogels, synthesized via a controlled silylation using N-[3-(trimethoxysilyl) propyl] ethylenediamine (DAMO), demonstrated excellent thermal up to 250°C (TGA) efficient adsorption through chemisorption, which was main mechanism. performance aerogels assessed both, adsorp-tion isotherms decay pressure technique, revealing that capacity in-creased with...

Core-shell magnetic air-stable nanoparticles have attracted increasing interest in recent years. Attaining a satisfactory distribution of (MNPs) polymeric matrices is difficult due to magnetically induced aggregation, and supporting the MNPs on nonmagnetic core-shell well-established strategy. In order obtain active polypropylene (PP) nanocomposites by melt mixing, thermal reduction graphene oxides (TrGO) at two different temperatures (600 1000 °C) was carried out, and, subsequently,...