Results 31 to 40 of about 135,801 (323)

Investigation of the shear-mechanical and dielectric relaxation processes in two mono-alcohols close to the glass transition [PDF]

open access: yes, 2008
Shear-mechanical and dielectric measurements on the two monohydroxy (mono-alcohol) molecular glass formers 2-ethyl-1-hexanol and 2-butanol close to the glass transition temperature are presented.
Bo Jakobsen   +6 more
core   +2 more sources

Debye relaxation in high magnetic fields

open access: yes, 2008
Dielectric relaxation is universal in characterizing polar liquids and solids, insulators, and semiconductors, and the theoretical models are well developed.
A. Kismarahardja   +8 more
core   +1 more source

Investigation of correlation between dielectric parameters and nanostructures in aqueous solution grown poly(vinyl alcohol)-montmorillonite clay nanocomposites by dielectric relaxation spectroscopy

open access: yeseXPRESS Polymer Letters, 2010
Poly(vinyl alcohol) (PVA)-montmorillonite (MMT) clay nanocomposite films up to 10 wt% clay concentration were synthesized by aqueous solution grown technique. The relative complex dielectric function, alternating current electrical conductivity, electric
doaj   +1 more source

Ion in Chitosan Based Solid Electrolyte

open access: yesInternational Journal of Electrochemical Science, 2019
Ion transport has been the subject of debate among scientists for more than three decades. This paper discusses the preparation, degradation and viscoelastic relaxation dynamics of ions in chitosan-based solid electrolyte.
Shujahadeen B. Aziz   +6 more
doaj   +1 more source

Dielectric Spectroscopy of Non-Stoichiometric SrMnO3 Thin Films

open access: yesInorganics
The dielectric properties of non-stoichiometric SrMnO3 (SMO) thin films grown by molecular beam epitaxy were systematically investigated. Especially, the effects of cation stoichiometry-induced diverse types and densities of defects on the dielectric ...
Shuang Zeng   +6 more
doaj   +1 more source

Relaxation dynamics in multicomponent glass formers with adjustable concentration fluctuations

open access: yesJournal of Non-Crystalline Solids: X, 2021
Here, we study the structural relaxation kinetics in modified binary (i.e., ternary) mixtures with strong concentration fluctuation imposed by a polar picoline and an apolar triphenylethylene by adding a surfactant phenanthridine.
Xiao Jin, Li-Min Wang
doaj   +1 more source

Memory function for dielectric relaxation

open access: yesThe Journal of Chemical Physics, 2000
The second-order memory function (SOMF) for the dicyclohexylmetyl-2metyl succinate is obtained by using simple numerical manipulation of the experimental dielectric data. According to the prescription given in a previous paper [J. Chem. Phys. 109, 9057 (1998)], the frequency behavior of the real and imaginary parts of the SOMF is discussed in terms of ...
Díaz-Calleja, R.   +3 more
openaire   +3 more sources

Glass transition and alpha-relaxation dynamics of thin films of labeled polystyrene

open access: yes, 2008
The glass transition temperature and relaxation dynamics of the segmental motions of thin films of polystyrene labeled with a dye, 4-[N-ethyl-N-(hydroxyethyl)]amino-4-nitraozobenzene (Disperse Red 1, DR1) are investigated using dielectric measurements ...
A. Dhinojwala   +6 more
core   +1 more source

Study of poly(bisphenol A carbonate) relaxation kinetics at the glass transition temperature [PDF]

open access: yes, 2007
In this work, the variations of the relaxation times are investigated above and below the glass transition temperature of a model amorphous polymer, the polycarbonate.
Bernès, Alain   +5 more
core   +3 more sources

Dielectric relaxation of the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate: microwave and far-IR properties [PDF]

open access: yes, 2017
Dielectric relaxation of the ionic liquid, 1-ethyl-3-methylimidazolium ethyl sulfate (EMI+ETS–), is studied using molecular dynamics (MD) simulations. The collective dynamics of polarization arising from cations and anions are examined.
Dhumal, Nilesh R.   +4 more
core   +1 more source

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