Results 51 to 60 of about 304,137 (289)

A Thermoreversible Gelation Pathway to Plant Cuticle‐Inspired Biopolymer Aerogel Monoliths Based on Network‐Spherulitic Crystal Assemblies

Advanced Materials, EarlyView.
To address functionality limitations in plant‐based and industrially compostable polymer aerogels, this work introduces bio‐inspired aerogels with broadened functionality. Inspired by functional plant tissues, lightweight biopolymer aerogels based on exclusively stereocomplex crystals are fabricated, featuring hierarchically macro‐/meso‐porous ...
Anthony V. Tuccitto, Zeineb Ben Rejeb, Rafaela Aguiar, Nello D. Sansone, Sumaiya Farzana, Isaac Ali, Jun Uk Lee, Daniel J. Davidson, Ailsa K. Edward, Chul B. Park, Patrick C. Lee   +10 more
wiley   +1 more source

Percolation‐Driven β‐Relaxation Enables Resonant Acceleration of Crystallization in Amorphous Phase‐Change Materials

Advanced Materials, EarlyView.
Mobile‐atom percolation underlying β‐relaxations fundamentally dictates the crystallization pathways of phase‐change materials. High‐frequency ultrasonic excitation dynamically modulates this critical mobility percolation network, substantially accelerating the crystallization process.
Yu‐Yao Liu, Liang Gao, Jun‐Ying Jiang, Yiming Zhou, Jan Luebben, Di Zhao, Xiaoling Lu, Maximilian J. Müller, Ulrich Boettger, Jiang‐Jing Wang, Hai‐Bin Yu, Shuai Wei   +11 more
wiley   +1 more source

Influence of clay surfactants polarity on the crystallization and rheological behavior of nanocomposites of PDLLA [PDF]

Materials Research, 2018
The effect of clay hydrophobicity on the cold crystallization and rheological properties of nanocomposites of poly(D,L-lactic acid) (PDLLA) was investigated. Crystallization was evaluated by DSC for isothermal and non-isothermal conditions.
Renata Brandão Brito Ramos, Patrícia Moraes Sinohara Souza, Ana Rita Morales   +2 more
doaj   +1 more source

Quantification of isothermal crystallization of polyamide 12: Modelling of crystallization kinetics and phase composition [PDF]

Polymer, 2018
The crystallization of Polyamide 12 (PA12) has been investigated using a new experimental setup which allows in-situ synchrotron Wide Angle X-ray Diffraction (WAXD) during Flash-DSC measurements. The experimental results are used to parameterize and validate a new numerical model to quantify the quiescent crystallization kinetics, under isothermal ...
Paolucci, F., Baeten, Dorien, Roozemond, Peter, Goderis, Bart, Peters, G.W.M.   +4 more
openaire   +1 more source

Directional Confinement Governed Ion Transport for Efficient Actuation

Advanced Materials, EarlyView.
Structural anisotropy provides an effective means to regulate ion transport in polymer electrolytes. Directionally aligned channels formed by freeze‐drying provide continuous pathways for ion migration, enhancing ion mobility and simultaneously improving the strain and blocking force of ionic actuators.
Yufei Zhang, Qiuchun Lu, Adit Gupta, Sen Wang, Xueyang Wang, Jian Yu, Xuanyi Hu, Daniel Mandler, Pooi See Lee   +8 more
wiley   +1 more source

Determining Kinetic Parameters for Isothermal Crystallization of Glasses

, 2007
Non-isothermal crystallization techniques are frequently used to determine the kinetic parameters for crystallization in glasses. the techniques are experimentally simple and quick, compared with isothermal techniques. However, the analytical models used
Zhang, Teng, Ray, C. S., Brow, Richard K., Reis, Signo Tadeu Dos   +3 more
core   +1 more source

From Dark Photocatalysis to Photobattery‐Type Operation: A Re‐Functionalized Ti‐MOF for Solar Energy Storage

Advanced Materials, EarlyView.
ReCl47‐bpy is developed as a solar‐rechargeable, Re‐functionalized two‐dimensional metal–organic framework (MOF) for light‐driven charge storage and dark utilization. Re–bipyridine sites stabilize photoinduced electrons, enabling two complementary configurations: a MOF suspension for long‐lived charge retention and dark H2 evolution, and a spin‐coated ...
Shufan Wu, Chuyi Liu, Vasilis Petropoulos, Evgenia Dmitrieva, Giulio Cerullo, Erling Thyrhaug, Jürgen Hauer, Julien Warnan, Roland A. Fischer   +8 more
wiley   +1 more source

Determination of the kinetic parameters for crystallization directly from isothermal DSC curves

Discover Chemistry
The determination of crystallization kinetic parameters is central to elucidating the transformation mechanisms in glassy systems, particularly when analyzed within the framework of the Kolmogorov–Johnson–Mehl–Avrami equation. In this paper, we show that
Abdalla A. Elabbar, Abdel-Hamid A. Abu-Sehly   +1 more
doaj   +1 more source

Thermodynamics of Concomitant Charge‐Transfer, Antiferromagnetic, and Isostructural Phase Transitions in Barocaloric ACu3Fe4O12 Quadruple Perovskites

Advanced Science, EarlyView.
A copper‐iron charge transfer instability drives concomitant electronic, magnetic, and isostructural phase transitions in ACu3Fe4O12${\rm ACu}_3{\rm Fe}_4{\rm O}_{12}$, with an inverse barocaloric effect. A minimal Landau theory ties these thermodynamic signatures together, revealing a pressure‐independent transition entropy with comparable charge and ...
Jefferson Delgado‐Quesada, Gian Giacomo Guzmán‐Verri   +1 more
wiley   +1 more source

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

Advanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li, Chenfei Qv, Haoran Tu, Qinfen Gu, Wayne D. Hutchison, Stewart J. Campbell, Zhenxiang Cheng, Wenquan Wang, Jianli Wang   +8 more
wiley   +1 more source