Articles with "pei" as a keyword



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Mixed Diethanolamine and Polyethyleneimine with Enhanced CO2 Capture Capacity from Air

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202207253

Abstract: Supported polyethyleneimine (PEI) adsorbent is one of the most promising commercial direct air capture (DAC) adsorbents with a long research history since 2002. Although great efforts have been input, there are still limited improvements for… read more here.

Keywords: pei; capacity; air; polyethyleneimine ... See more keywords

Innovative Design of PEI‐Modified AMO‐Layered Double Hydroxide for Efficient and Stable Direct Air Capture of CO2

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Published in 2025 at "Advanced Science"

DOI: 10.1002/advs.202507756

Abstract: Emerging as a critical technology for atmospheric carbon dioxide (CO2) removal, the mass deployment of direct air capture (DAC) demands breakthrough innovations in efficient and stable adsorbent materials that simultaneously achieve high capacity, oxidative durability,… read more here.

Keywords: spectroscopy; direct air; air; efficient stable ... See more keywords

Polyethyleneimine‐grafted membranes for simultaneously adsorbing heavy metal ions and rejecting suspended particles in wastewater

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Published in 2017 at "Aiche Journal"

DOI: 10.1002/aic.15789

Abstract: Heavy metal ions (HMIs) in wastewater can be removed by polyethyleneimine (PEI) adsorption, however, it is difficult to recycle PEI macromolecules from their mixture with suspended particles in wastewater. A novel HMIs adsorption technique with… read more here.

Keywords: suspended particles; metal ions; pei; heavy metal ... See more keywords

Investigation into the viscoelastic response at various gelation performance, thermal stability and swelling kinetics of fly ash reinforced polymer gels for water control in mature oilfields

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Published in 2017 at "Asia-Pacific Journal of Chemical Engineering"

DOI: 10.1002/apj.2049

Abstract: The present crippling crude oil price worldwide demands a new strategy and cost-effective technology that will promote additional oil recovery in mature oilfields. Herein, crosslinked polyacrylamide (PAM) gels reinforced with coal fly ash (CFA) were… read more here.

Keywords: gelation; water; mature oilfields; pei ... See more keywords

Surface decoration of low molecular weight polyethylenimine (LMW PEI) by phthalated dextrin for improved delivery of interleukin‐12 plasmid

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Published in 2024 at "Biotechnology Progress"

DOI: 10.1002/btpr.3443

Abstract: In this investigation, low molecular weight polyethyleneimine (LMW PEI; 1.8 kDa branched PEI) was conjugated to phathalated dextrin. The aim of this chemical modification was to decorate PEI molecules with a hydrophilic layer to improve its… read more here.

Keywords: molecular weight; pei; lmw pei; low molecular ... See more keywords

Synthesis of N‐Sulfopropylated Hyperbranched Polyethyleneimine with Enhanced Biocompatibility and Antimicrobial Activity

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Published in 2024 at "Chempluschem"

DOI: 10.1002/cplu.202400454

Abstract: Abstract Hyperbranched polyethyleneimine having 25,000 Da molecular weight was functionalized by a simple sulfopropylation reaction, affording a novel N‐sulfopropylated PEI derivative (PEI‐SO3 −). The successful introduction of N‐sulfopropyl and sulfobetaine groups to the amino groups of… read more here.

Keywords: hyperbranched polyethyleneimine; pei so3; antibacterial anti; pei ... See more keywords

Synthesis and Application of Low Molecular Weight PEI-based Copolymers for siRNA Delivery with Smart Polymer Blends.

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Published in 2022 at "Macromolecular bioscience"

DOI: 10.1002/mabi.202200409

Abstract: Polyethylenimine (PEI) is a commonly used cationic polymer for small-interfering RNA (siRNA) delivery due to its high transfection efficiency at low commercial cost. However, high molecular weight PEI is cytotoxic and thus, its practical application… read more here.

Keywords: pei; kda; molecular weight; pcl ... See more keywords

Effective Combination of Carbon Nanotubes and Polyimide to Enhance Interlaminar Properties of Carbon Fiber Reinforced Polyether Ether Ketone Composites

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Published in 2025 at "Polymer Composites"

DOI: 10.1002/pc.70063

Abstract: Carbon fiber‐reinforced polyether ether ketone (CF/PEEK) composites exhibit high toughness, fatigue resistance, and damage tolerance, demonstrating broad application potential in aerospace. However, the high melt viscosity of PEEK poses challenges during composite fabrication. To address… read more here.

Keywords: carbon fiber; pei; fiber reinforced; interlaminar ... See more keywords

Vorteile der Piezo-Technologie in der Rhinoplastik

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Published in 2019 at "HNO"

DOI: 10.1007/s00106-019-0675-x

Abstract: ZusammenfassungHintergrundIn der plastischen und rekonstruktiven Gesichtschirurgie ist eine präzise, atraumatische Handhabung von Knorpel, Knochen und umliegendem Weichgewebe für das operative Ergebnis von besonderer Bedeutung. Die Piezo-Technologie („piezoelectric instrumentation“, PEI) bietet eine neue Möglichkeit des Gewebeerhalts… read more here.

Keywords: von; der rhinoplastik; pei; der ... See more keywords

Fabrication of covalently bonded nanostructured thin films of epoxy resin and polydimethylsiloxane for oil adsorption

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Published in 2017 at "Polymer Bulletin"

DOI: 10.1007/s00289-017-1988-0

Abstract: Abstract Thin films of architectures PEI(CNERa/PDMS)n, PEI(CNERb/PDMS)n, (PEI/CNERb)n and PEI(CNERb/NH2-MMT/PEI)n have been fabricated via covalent layer-by-layer technique. Different film deposition parameters such as solvent type, polymer concentration, polymer ratio and dipping time have been optimized… read more here.

Keywords: thin films; oil adsorption; pei cnerb; pei ... See more keywords
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Epoxy polymers modified with polyetherimide. Part I: rheological and thermomechanical characteristics

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Published in 2020 at "Polymer Bulletin"

DOI: 10.1007/s00289-020-03174-8

Abstract: Using the methods of viscometry, SEM, DMA the effect of polyetherimide (PEI) on the properties of ED-20 epoxy oligomer during and after curing was studied. It was shown that the introduction of the modifier significantly… read more here.

Keywords: part rheological; epoxy polymers; modified polyetherimide; polyetherimide part ... See more keywords