scholarly journals Photo-Probe Study of Siloxane Polymers II. Local Structure and Dynamics of MQ-Type Silicone Resin Probed by Fluorescence Depolarization of Perylene

2000 ◽  
Vol 32 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Kimihiko Yoshii ◽  
Shinjiro Machida ◽  
Kazuyuki Horie ◽  
Maki Itoh
Keyword(s):  
Local Structure ◽  
Silicone Resin ◽  
Fluorescence Depolarization ◽  
Structure And Dynamics ◽  
Photo Probe ◽  
Siloxane Polymers

Photo-probe study of siloxane polymers. I. Local free volume of an MQ-type silicone resin containing crosslinked nanoparticles probed by photoisomerization of azobenzene

1999 ◽  
Vol 246 (1-2) ◽  
pp. 90-103 ◽  
Author(s):  
Kimihiko Yoshii ◽  
Takashi Yamashita ◽  
Shinjiro Machida ◽  
Kazuyuki Horie ◽  
Maki Itoh ◽  
...  
Keyword(s):  
Free Volume ◽  
Silicone Resin ◽  
Photo Probe ◽  
Siloxane Polymers

Polarization-resolved single-molecule tracking reveal strange dynamics of individual fluorescent tracers through a deep rubbery polymer network

2021 ◽  
Author(s):  
Jaladhar Mahato ◽  
Sukanya Bhattacharya ◽  
Dharmendar Kumar Sharma ◽  
Arindam Chowdhury
Keyword(s):  
Single Molecule ◽  
Local Structure ◽  
Biological Systems ◽  
Polymer Network ◽  
Soft Materials ◽  
Complex Environments ◽  
Fluorescent Tracers ◽  
Single Molecule Tracking ◽  
Structure And Dynamics

Tracking the movement of fluorescent single-molecule (SM) tracers has provided several new insights on the local structure and dynamics in complex environments such as soft materials and biological systems. However,...

scholarly journals Local Structure and Dynamics of Functional Materials Studied by X-ray Absorption Fine Structure

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1315
Author(s):  
Takafumi Miyanaga
Keyword(s):  
Fine Structure ◽  
Local Structure ◽  
Chemical Reactivity ◽  
Functional Materials ◽  
X Ray ◽  
Structure And Dynamics ◽  
Absorption Fine ◽  
Structure Phase Transition ◽  
Local Electronic Structure ◽  
X Ray Absorption

X-ray absorption fine structure (XAFS) is a powerful technique used to analyze a local electronic structure, local atomic structure, and structural dynamics. In this review, I present examples of XAFS that apply to the local structure and dynamics of functional materials: (1) structure phase transition in perovskite PbTiO3 and magnetic FeRhPd alloys; (2) nano-scaled fluctuations related to their magnetic properties in Ni–Mn alloys and Fe/Cr thin films; and (3) the Debye–Waller factors related to the chemical reactivity for catalysis in polyanions and ligand exchange reaction. This study shows that the local structure and dynamics are related to the characteristic function of the materials.

Local structure and dynamics of amorphous germanium studied by the cumulant expansion of EXAFS

1993 ◽  
Vol 164-166 ◽  
pp. 159-162 ◽  
Author(s):  
G. Dalba ◽  
P. Fornasini ◽  
D. Diop ◽  
M. Grazioli ◽  
F. Rocca
Keyword(s):  
Local Structure ◽  
Cumulant Expansion ◽  
Amorphous Germanium ◽  
Structure And Dynamics

Local Structure and Dynamics of Water Absorbed in Poly(ether imide): A Hydrogen Bonding Anatomy

2017 ◽  
Vol 121 (14) ◽  
pp. 3162-3176 ◽  
Author(s):  
Antonio de Nicola ◽  
Andrea Correa ◽  
Giuseppe Milano ◽  
Pietro La Manna ◽  
Pellegrino Musto ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Local Structure ◽  
Structure And Dynamics

Local Structure and Dynamics in the Na Ion Battery Positive Electrode Material Na3V2(PO4)2F3

2014 ◽  
Vol 26 (8) ◽  
pp. 2513-2521 ◽  
Author(s):  
Zigeng Liu ◽  
Yan-Yan Hu ◽  
Matthew T. Dunstan ◽  
Hua Huo ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Local Structure ◽  
Positive Electrode ◽  
Structure And Dynamics ◽  
Positive Electrode Material

Local Structure and Dynamics in Solvent-Swollen Polymers

1996 ◽  
Vol 29 (13) ◽  
pp. 4782-4791 ◽  
Author(s):  
Florian Müller-Plathe
Keyword(s):  
Local Structure ◽  
Structure And Dynamics

scholarly journals Disconnecting structure and dynamics in glassy thin films

2017 ◽  
Vol 114 (40) ◽  
pp. 10601-10605 ◽  
Author(s):  
Daniel M. Sussman ◽  
Samuel S. Schoenholz ◽  
Ekin D. Cubuk ◽  
Andrea J. Liu
Keyword(s):  
Thin Film ◽  
Machine Learning ◽  
Thin Films ◽  
Predictive Models ◽  
Local Structure ◽  
The Other ◽  
Microscopic Structure ◽  
Glassy Dynamics ◽  
Structure And Dynamics ◽  
Machine Learning Methods

Nanometrically thin glassy films depart strikingly from the behavior of their bulk counterparts. We investigate whether the dynamical differences between a bulk and thin film polymeric glass former can be understood by differences in local microscopic structure. Machine learning methods have shown that local structure can serve as the foundation for successful, predictive models of particle rearrangement dynamics in bulk systems. By contrast, in thin glassy films, we find that particles at the center of the film and those near the surface are structurally indistinguishable despite exhibiting very different dynamics. Next, we show that structure-independent processes, already present in bulk systems and demonstrably different from simple facilitated dynamics, are crucial for understanding glassy dynamics in thin films. Our analysis suggests a picture of glassy dynamics in which two dynamical processes coexist, with relative strengths that depend on the distance from an interface. One of these processes depends on local structure and is unchanged throughout most of the film, while the other is purely Arrhenius, does not depend on local structure, and is strongly enhanced near the free surface of a film.

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