Dielectric relaxation study of some haloanisole in various non polar solvents

Aggarwal, Chhavi; Arya, Rashmi; Gandhi, J. M.; Sisodia, M. L.

doi:10.1016/0167-7322(90)80084-w

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…The dipolemeter based on the principle of heterodyne beat method was used for the measurement of the static permittivity e o at 300 KHz. Refractive indices were measured by a Abbe's refractometer which, in turn, gives the optical permittivity [9].…”

Section: Experimental Details and Theorymentioning

confidence: 99%

Molecular association of alkyl methacrylates and alcohols in non-polar solvents: Dielectric study

Sivagurunathan¹,

Dharmalingam²,

Ramachandran³

et al. 2005

Main Group Chemistry

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Experimental results of dielectric investigations at 9.84 GHz for alkyl methacrylates (methyl methacrylate, ethyl methacrylate and butyl methacrylate) with alcohols (1-butanol, secbutanol, tert-butanol and 1-decanol) have been studied in carbon tetrachloride and benzene at 298, 303, 313 and 323 K. The relaxation time and the thermodynamical parameters, viz., free energy, enthalpy and entropy of activation have been determined using the measured dielectric data. The results show a linear dependence of relaxation time on alkyl chain length of both alcohols and alkyl methacrylates and also on the nature of the solvent. Comparative study of free energy of activation for the dielectric relaxation and viscous flow suggest the fact that the process of viscous flow involves greater interference by neighbors than does dielectric relaxation, as the latter takes place by rotation only whereas the viscous flow involves both the rotational and translational forms of motion. The thermodynamic parameter shows negative value which indicates that the reaction is forward and exothermic.

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Section: Experimental Details and Theorymentioning

confidence: 99%

Molecular association of alkyl methacrylates and alcohols in non-polar solvents: Dielectric study

Sivagurunathan¹,

Dharmalingam²,

Ramachandran³

et al. 2005

Main Group Chemistry

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“…The measurement of dielectric constant ( ′) and dielectric loss ( ′′) were carried out in the X-band microwave frequency of 9.84 GHz. The experimental setup and the procedure employed were the same as reported by Aggarwal et al 17 The temperature of all the measurements was maintained at 25 ( 0.1 °C using a water circulating thermostat.…”

Section: Methodsmentioning

confidence: 99%

Molecular Associations in Alcohol−Methyl Methacrylate Mixtures

et al. 2006

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Molecular association between alcohols (1-propanol, 1-butanol, sec-butanol, tert-butanol, 1-pentanol, 1-heptanol, 1-octanol, and 1-decanol) with methyl methacrylate has been studied in n-heptane, CCl4, and benzene at 298 K using FTIR spectroscopic and dielectric methods. The result obtained from both methods indicates only the existence of most likely 1:1 complex formation between the alcohol and the methyl methacrylate in these systems. The alkyl chain length of alcohol and the solvent used plays a significant role on the strength of hydrogen bond (OH:OC) determined on the basis of spectral and dielectric parameters.

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“…The dielectric constant ε′ and loss ε″ at the microwave frequency of 9.84 GHz were measured using the methods of Roberts and Von Hippel [6] modified by Dakin and Works [7]. The experimental set-up and the procedure employed were the same as reported by Aggarval et al [8]. The values of ε′ and ε″ so obtained are accurate within ± 1% and ± 5%, respectively.…”

Section: Dielectric Studymentioning

confidence: 99%

Molecular interaction of alcohols with acrylic esters in non-polar solvents

Dharmalingam¹,

Ramachandran²,

Sivagurunathan³

et al. 2006

Comptes Rendus. Chimie

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The molecular interaction between alcohols (1-propanol, 1-pentanol, 1-heptanol, and 1-octanol) and acrylic esters (methyl methacrylate (MMA), ethyl methacrylate (EMA) and butyl methacrylate (BMA)) have been studied in carbon tetrachloride and benzene at 298 K using dielectric and FTIR spectroscopic methods. The result shows that, 1:1 complex is predominant in these systems. The strength of hydrogen bond (O-H:C=O) formation shows a significant dependence of on alkyl chain length of both alcohols and acrylic esters and the nature of the solvent used.

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Dielectric relaxation study of some haloanisole in various non polar solvents

Cited by 8 publications

References 16 publications

Molecular association of alkyl methacrylates and alcohols in non-polar solvents: Dielectric study

Molecular association of alkyl methacrylates and alcohols in non-polar solvents: Dielectric study

Molecular Associations in Alcohol−Methyl Methacrylate Mixtures

Molecular interaction of alcohols with acrylic esters in non-polar solvents

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