Results 111 to 120 of about 48,944 (309)

Blendas PET/PS: efeito do compatibilizante SMA e da reciclagem nas propriedades microscópicas / [PDF]

open access: yes, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Neste trabalho foram estudados os efeitos da adição de agente compatibilizante, poli[(estireno)-co-(anidirido maleico)] [SMA] e dos ciclos de ...
Oliveira, Ricardo Vinicius Bof de
core  

gamma-alumina nanofibers prepared from aluminum hydrate with poly(ethylene oxide) surfactant

open access: yes, 2002
Introducing poly(ethylene oxide) surfactant to aluminum hydrate colloids can effectively direct the crystal growth of boehmite and the crystal morphology of final gamma-alumina crystallites. Fibrous crystallites of gamma-alumina about 3-4 nm thick and 30-
Riches, J. D.   +5 more
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Crystallization Behavior of Poly(ethylene oxide)-b-Poly(epsilon-caprolactone) under High Pressure CO2

open access: yes, 2015
The crystallization morphology and lamellae thickness of poly(ethylene oxide)-b-poly (epsilon-caprolactone) (PEO-b-PCL) under high pressure CO, was studied by means of wide-angel X-ray diffraction (WAXD) and small-angel X-ray scattering (SAXS).
Zhou, Jian   +3 more
core  

Interfacial surfactant competition and its impact on poly(ethylene oxide)/Au and poly(ethylene oxide)/Ag nanocomposite properties

open access: yesNanotechnology, Science and Applications, 2017
Merve Seyhan,1 William Kucharczyk,2 U Ecem Yarar,1 Katherine Rickard,2 Deniz Rende,2,3 Nihat Baysal,4 Seyda Bucak,1 Rahmi Ozisik2,3 1Department of Chemical Engineering, Yeditepe University, Istanbul, Turkey; 2Department of Materials Science and ...
Seyhan M   +7 more
doaj  

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena   +10 more
wiley   +1 more source

Mechanical Characterization of Hybrid Vesicles Based on Linear Poly(Dimethylsiloxane-b-Ethylene Oxide) and Poly(Butadiene-b-Ethylene Oxide) Block Copolymers

open access: yesSensors, 2016
Poly(dimethylsiloxane-ethylene oxide) (PDMS-PEO) and poly(butadiene-b-ethylene oxide) (PBd-PEO) are two block copolymers which separately form vesicles with disparate membrane permeabilities and fluidities. Thus, hybrid vesicles formed from both PDMS-PEO
Jeffery Gaspard   +5 more
doaj   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu   +14 more
wiley   +1 more source

Auto-associação do colato de sódio (nac) em misturas com dodecilsulfato de sódio (sds) e poli(oxietileno) (peo) [PDF]

open access: yes, 2003
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.As propriedades de misturas de poli(oxietileno) (PEO) e colato de sódio (NaC) em solução tampão tris/HCl, pH 9,00, 25oC foram aqui ...
FELIPPE, Arlindo Cristiano
core  

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

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