# Shagufta Tabassum

## Publications

##### 2 Comparative Dielectric Properties of 1,2-Dichloroethane with n-Methylformamide and n,n-Dimethylformamide Using Time Domain Reflectometry Technique in Microwave Frequency

**Authors:**
Shagufta Tabassum,
V. P. Pawar,
jr.,
G. N. Shinde

**Abstract:**

The study of dielectric relaxation properties of polar liquids in the binary mixture has been carried out at 10, 15, 20 and 25 ºC temperatures for 11 different concentrations using time domain reflectometry technique. The dielectric properties of a solute-solvent mixture of polar liquids in the frequency range of 10 MHz to 30 GHz gives the information regarding formation of monomers and multimers and also an interaction between the molecules of the liquid mixture under study. The dielectric parameters have been obtained by the least squares fit method using the Debye equation characterized by a single relaxation time without relaxation time distribution.

**Keywords:**
relaxation time,
excess properties,
static dielectric constant,
time domain refelectometry technique

##### 1 Structural Properties of Polar Liquids in Binary Mixture Using Microwave Technique

**Authors:**
Shagufta Tabassum,
V. P. Pawar

**Abstract:**

The study of static dielectric properties in a binary mixture of 1,2 dichloroethane (DE) and n,n dimethylformamide (DMF) polar liquids has been carried out in the frequency range of 10 MHz to 30 GHz for 11 different concentration using time domain reflectometry technique at 10ºC temperature. The dielectric relaxation study of solute-solvent mixture at microwave frequencies gives information regarding the creation of monomers and multimers as well as interaction between the molecules of the binary mixture. The least squares fit method is used to determine the values of dielectric parameters such as static dielectric constant (ε_{0}), dielectric constant at high frequency (ε_{∞}) and relaxation time (τ).

**Keywords:**
relaxation time,
time domain reflectometry,
static dielectric constant,
Excess parameters

## Abstracts

##### 2 Comparative Dielectric Properties of 1,2-Dichloroethane with n-Methylformamide and n,n-Dimethylformamide Using Time Domain Reflectometry Technique in Microwave Frequency

**Authors:**
Shagufta Tabassum,
V. P. Pawar,
jr.,
G. N. Shinde

**Abstract:**

**Keywords:**
relaxation time,
excess properties,
static dielectric constant,
and time domain reflectometry technique

##### 1 Structural Properties of Polar Liquids in Binary Mixture Using Microwave Technique

**Authors:**
Shagufta Tabassum,
V. P. Pawar

**Abstract:**

_{0}), dielectric constant at high frequency (ε

_{∞}) and relaxation time (τ).

**Keywords:**
relaxation time,
time domain reflectometry,
shagufta shaikhexcess parameters,
static dielectric constant