Results 91 to 100 of about 28,638 (302)

The effect of secondary crystallization on melting

open access: yes, 2013
The effect of isothermal crystallization temperature and time on the melting endotherms of poly (ethylene terephthalate), PET, has been measured using differential scanning calorimetry.
Chen, Ziyu   +2 more
core   +1 more source

GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching

open access: yesAdvanced Functional Materials, EarlyView.
The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich   +13 more
wiley   +1 more source

The effect of matrix morphology on dynamic-mechanical properties of polypropylene/layered silicate nanocomposites

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2017
In this work, the influence on the morphology and viscoelastic behavior of polypropylene/clay nanocomposites of clay, in combination with different crystallization rates applied in compression molding, is reported.
Gordana Bogoeva-Gaceva   +2 more
doaj   +1 more source

Low‐Flicker‐Noise MoS2 Transistors Enabled by High‐κ Rare‐Earth Oxychlorides for Mixed‐Signal Electronics

open access: yesAdvanced Functional Materials, EarlyView.
Single‐crystalline LaOCl and GdOCl form atomically abrupt, Cl‐terminated interfaces with MoS2, enabling near‐ideal switching and suppressed flicker noise. Carrier‐number‐fluctuation analysis yields effective noise‐derived interface trap densities of 1.15–1.94 × 1010 cm−2 eV−1, approaching hexagonal boron nitride levels with high‐κ coupling.
Chanho Lee   +10 more
wiley   +1 more source

Recyclable Lignin‐Based Thermadapt Shape Memory Polymers With Near‐Infrared Light Response

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Covalent adaptable networks (CANs) have been designed to address the recycling challenges associated with thermosets, while preserving their mechanical properties. However, producing biobased CANs with intelligent response capabilities remains challenging.
Jian Liu   +8 more
wiley   +1 more source

ULTRASONIC ATTENUATION IN ICE CRYSTALS NEAR THE MELTING TEMPERATURE

open access: yesLe Journal de Physique Colloques, 1981
Ultrasonic attenuation in crystals of ice Ih has been measured as functions of frequency (15 ~ 85 MHz) and temperature (- 8°C ~ - 0.1°C). Data were analyzed on the basis of vibrating string model of dislocation, and the following results have been obtained : Density of dislocations is on the order of 106 cm-2 ; pinning of dislocations may be due to ...
Hiki, Y., Tamura, J.
openaire   +2 more sources

The crystallization and melting processes of poly(L-lactic acid)

open access: yes, 2006
A throughout investigation of crystallization and melting behavior of poly(L-lactic acid) is detailed in this contribution. Crystallization analyses, conducted in both isothermal and non-isothermal conditions, revealed the occurrence of a sudden ...
M L Di Lorenzo
core  

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

open access: yesAdvanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani   +10 more
wiley   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

open access: yesAdvanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz   +11 more
wiley   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

open access: yesAdvanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena   +3 more
wiley   +1 more source

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