scholarly journals On the Decoupling of Relaxation Modes in a Molecular Liquid Caused by Isothermal Introduction of 2 nm Structural Inhomogeneities

2011 ◽  
Vol 115 (48) ◽  
pp. 13994-13999 ◽  
Author(s):  
Kazuhide Ueno ◽  
C. Austen Angell
Keyword(s):  
Molecular Liquid ◽  
Structural Inhomogeneities ◽  
Relaxation Modes

Structural inhomogeneities in plastically deformed ferritic stainless steel

1985 ◽  
Vol 73 (8-9) ◽  
pp. E117-E122
Author(s):  
S. Dymek ◽  
M. Blicharski
Keyword(s):  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Structural Inhomogeneities

Carbon Dioxide under Earth Mantle Conditions: From a Molecular Liquid through a Reactive Fluid to Polymeric Regimes

2021 ◽  
Author(s):  
Mathieu Moog ◽  
Fabio Pietrucci ◽  
A. Marco Saitta
Keyword(s):  
Carbon Dioxide ◽  
Reactive Fluid ◽  
Molecular Liquid

scholarly journals On the Mutual Relationships between Molecular Probe Mobility and Free Volume and Polymer Dynamics in Organic Glass Formers: cis-1,4-poly(isoprene)

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 294
Author(s):  
Helena Švajdlenková ◽  
Ondrej Šauša ◽  
Sergey V. Adichtchev ◽  
Nikolay V. Surovtsev ◽  
Vladimir N. Novikov ◽  
...  
Keyword(s):  
Free Volume ◽  
Spin Probe ◽  
Hyperfine Coupling Constant ◽  
Organic Glass ◽  
Molecular Probe ◽  
Positron Annihilation Lifetime ◽  
Broadband Dielectric Spectroscopy ◽  
Relaxation Modes ◽  
Reorientation Dynamics ◽  
In Cis

We report on the reorientation dynamics of small spin probe 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO) in cis-1,4-poly(isoprene) (cis-1,4-PIP10k) from electron spin resonance (ESR) and the free volume of cis-1,4-PIP10k from positron annihilation lifetime spectroscopy (PALS) in relation to the high-frequency relaxations of cis-1,4-PIP10k using light scattering (LS) as well as to the slow and fast processes from broadband dielectric spectroscopy (BDS) and neutron scattering (NS). The hyperfine coupling constant, 2Azz′(T), and the correlation times, τc(T), of cis-1,4-PIP10k/TEMPO system as a function of temperature exhibit several regions of the distinct spin probe TEMPO dynamics over a wide temperature range from 100 K up to 350 K. The characteristic ESR temperatures of changes in the spin probe dynamics in cis-1,4-PIP10k/TEMPO system are closely related to the characteristic PALS ones reflecting changes in the free volume expansion from PALS measurement. Finally, the time scales of the slow and fast dynamics of TEMPO in cis-1,4-PIP10k are compared with all of the six known slow and fast relaxation modes from BDS, LS and NS techniques with the aim to discuss the controlling factors of the spin probe reorientation mobility in polymer, oligomer and small molecular organic glass-formers.

Characterization of structural inhomogeneities in porous media

AIChE Journal ◽  
1995 ◽  
Vol 41 (4) ◽  
pp. 894-906 ◽  
Author(s):  
Lynn F. Gladden ◽  
Michael P. Hollewand ◽  
Paul Alexander
Keyword(s):  
Porous Media ◽  
Structural Inhomogeneities

Study of dielectric relaxation modes in poly(ε-caprolactone): Molecular weight, water sorption, and merging effects

2001 ◽  
Vol 114 (14) ◽  
pp. 6417-6425 ◽  
Author(s):  
M. Grimau ◽  
E. Laredo ◽  
M. C. Pérez Y. ◽  
A. Bello
Keyword(s):  
Molecular Weight ◽  
Dielectric Relaxation ◽  
Water Sorption ◽  
Relaxation Modes

Structure and thermodynamics of molecular liquid mixtures

1986 ◽  
Vol 57 (5) ◽  
pp. 1049-1061 ◽  
Author(s):  
S. Gupta ◽  
J.E. Coon
Keyword(s):  
Liquid Mixtures ◽  
Molecular Liquid

Computer simulation of molecular liquid mixtures. I. A diatomic Lennard‐Jones model mixture for CO2/C2H6

1986 ◽  
Vol 84 (8) ◽  
pp. 4535-4546 ◽  
Author(s):  
D. Fincham ◽  
N. Quirke ◽  
D. J. Tildesley
Keyword(s):  
Computer Simulation ◽  
Liquid Mixtures ◽  
Model Mixture ◽  
Lennard Jones ◽  
Molecular Liquid ◽  
Jones Model

scholarly journals Nature of structural inhomogeneities on folding a helix and their influence on spectral measurements

2004 ◽  
Vol 101 (25) ◽  
pp. 9229-9234 ◽  
Author(s):  
S. Gnanakaran ◽  
R. M. Hochstrasser ◽  
A. E. Garcia
Keyword(s):  
Spectral Measurements ◽  
Structural Inhomogeneities
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