Thermodynamic and spectroscopic properties of 2-pyrrolidinones. 2. Dielectric properties of 2-pyrrolidinone in binary mixtures

1990 ◽  
Vol 19 (5) ◽  
pp. 473-482 ◽  
Author(s):  
P. Ruostesuo ◽  
P. Piril�-Honkanen
2010 ◽  
Vol 42 (8) ◽  
pp. 967-972 ◽  
Author(s):  
A. Ghanadzadeh Gilani ◽  
H. Ghanadzadeh ◽  
Kh. Bahrpaima ◽  
A. Ranjkesh

2017 ◽  
Vol 105 ◽  
pp. 238-252 ◽  
Author(s):  
Samara Storion Bittencourt ◽  
Heloisa Emi Hoga ◽  
Ricardo Belchior Torres ◽  
José Vicente Hallak d’Angelo

Author(s):  
Massaud Mostafa ◽  
Ziyad Alrowaili ◽  
Gehad Rahwan ◽  
Melad Gerges

Perovskite type (Pb1-1.5x Lax0.5x)TiO3 (PLT) ceramics with x = 0.21, 0.22, 0.23, 0.24, 0.25 were prepared by the sol-gel method. Their structural, optical, and dielectric properties were investigated. The crystallite compounds were obtained by calcinating the mixture of PbCO3, TiO2, and La2O3 at 1000ºC for different time periods. After 4 h annealing, PLT23 sample, no secondary phases have been observed in the XRD spectrum of the PLT sample with 23% La content (PLT23). This sample appears to be notably distinguished in its structural, optical, and dielectric characteristics compared with other samples.


1979 ◽  
Vol 70 (10) ◽  
pp. 4742-4750 ◽  
Author(s):  
José Goulon ◽  
Jean‐Louis Greffe ◽  
David W. Oxtoby

2016 ◽  
Vol 06 (04) ◽  
pp. 1650034
Author(s):  
M. B. Swami ◽  
P. G. Hudge ◽  
V. P. Pawar

The dielectric properties of binary mixtures of benzylamine-1,2,6-hexantriol mixtures at different volume fractions of 1,2,6-hexanetriol have been measured using Time Domain Reflectometry (TDR) technique in the frequency range of 10 MHz to 30 GHz. Complex permittivity spectra were fitted using Havriliak–Negami equation. By using least square fit method the dielectric parameters such as static dielectric constant ([Formula: see text]), dielectric constant at high frequency ([Formula: see text]), relaxation time [Formula: see text] (ps) and relaxation distribution parameter ([Formula: see text]) were extracted from complex permittivity spectra at 25[Formula: see text]C. The intramolecular interaction of different molecules has been discussed using the Kirkwood correlation factor, Bruggeman factor. The Kirkwood correlation factor ([Formula: see text]) and effective Kirkwood correlation factor ([Formula: see text]) indicate the dipole ordering of the binary mixtures.


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