Results 81 to 90 of about 124,413 (295)

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

Advanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain, Yun Seong Kim, Pallab Layak, Pranav Krishnan, Young bum Lee, Minjiang Zhu, Shubh Singh, Philippe H. Geubelle, Paul V. Braun, Jeffery W. Baur, Nancy R. Sottos, Sameh H. Tawfick, Randy H. Ewoldt   +12 more
wiley   +1 more source

Applied Thermodynamics: Grain Boundary Segregation

Entropy, 2014
Chemical composition of interfaces—free surfaces and grain boundaries—is generally described by the Langmuir–McLean segregation isotherm controlled by Gibbs energy of segregation.
Pavel Lejček, Lei Zheng, Siegfried Hofmann, Mojmír Šob   +3 more
doaj   +1 more source

The Enthalpy of Hydrolysis of Acetylcholine

Journal of Biological Chemistry, 1972
Abstract The enthalpy of hydrolysis of acetylcholine at pH 7 and 25° is found to be ΔH = +280 ± 20 cal mole-1 after correction for buffer ionization heat. Under physiological conditions, the hydrolysis, which is accompanied by the liberation of 1 proton per molecule hydrolyzed, will have an enthalpy change depending almost entirely on the effective ...
openaire   +2 more sources

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

ON THE ENTHALPY OF SEAWATER1 [PDF]

Limnology and Oceanography, 1970
An empirical equation for the enthalpy of seawater was determined as a function of temperature (0 to 30C) and concentration (0.01 to 0.04 g of sea salt/g seawater): urn:x-wiley:00243590:media:lno19701540587:lno19701540587_math-0001 The equation was derived from available heat capacity data and the second order concentration terms were determined from
openaire   +1 more source

Synergistic Integration of Liquid Crystalline Ordering and Dynamic Networks for Ultrarobust Bismaleimide Vitrimers

Advanced Functional Materials, EarlyView.
A liquid‐crystalline bismaleimide vitrimer integrates local mesogenic organization with exchange‐active ester connectivity, achieving a glass‐transition temperature near 300°C while remaining reprocessable. Stress‐relaxation analysis and temperature‐dependent remolding reveal how segmental mobility, network rearrangement, and structural integrity ...
Woohyeon Kwon, Van‐Kien Hoang, Kyosun Ku, Hyeonuk Yeo   +3 more
wiley   +1 more source

The Molecular Origin of Enthalpy/Entropy Compensation in Biomolecular Recognition [PDF]

, 2017
Biomolecular recognition can be stubborn; changes in the structures of associating molecules, or the environments in which they associate, often yield compensating changes in enthalpies and entropies of binding, and no net change in affinities.
Mengxia, Zhao, Michael J., Fink, Kyungtae, Kang, George M., Whitesides, Jerome M., Fox   +4 more
core   +1 more source

Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams

Advanced Functional Materials, EarlyView.
A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek, Priscilla de Souza Lima, Olga Gotkiewicz, Ondrej Kopilec, Radka Hobzova, Lívia Kanizsová, Mikelis Kirpluks, Ondrej Sedlacek, Hynek Beneš   +8 more
wiley   +1 more source

Ultrathin Amphipathic Dual‐Polymer Networks: Unlocking Hyper‐Permeable CO2 Capture via Solvent‐Mediated Poly(Ethylene Oxide) Amorphization

Advanced Functional Materials, EarlyView.
Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu, Fan Feng, Baiwang Zhao, Jordan Yuan Zhe Ng, Kaiyu Wang, Can Zeng Liang, Guangtai Zheng, Boxuan Zhao, Tai‐Shung Chung, Sui Zhang   +9 more
wiley   +1 more source

Bernoulli’s equation, energy and enthalpy [PDF]

Revista Brasileira de Ensino de Física
In this paper, we expose and compare two different physical interpretations of Bernoulli’s equation. One interpretation is that pressure must be a type of potential energy density, and Bernoulli’s equation means the uniformity of the mechanical energy ...
Leonardo Sioufi Fagundes dos Santos
doaj   +1 more source