Dielectric Relaxation Studies of Binary Mixtures of N,N-Dimethylformamide and N,N-Dimethylacetamide in Benzene Solutions Using Microwave Absorption Technique

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概要

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• Using standard microwave X-band technique and by following Gopalakrishna'ssingle frequency concentration variational method, dielectric relaxation times(r) of dilute solutions of N,N-dimethylformamide (DME), N,N-dimethylacetamide(DMA) and several DMF-F-DMA mixtures in benzene at 15'C have been meas-ured. Such measurements using DMF -F- DMA mixtture containing 50 mol %DMAhave also been carried out in benzene at 20, 25 and 30'C. The energy parameters(AF., AH. and AS.) for the dielectric relaxation process for DMF -l- DMA mixturecontaining 50mol3DMA have been calculated at 15, 20, 25 and 30'C andcompared with the corresponding viscosity parameters. A good agreement be-tween the free energy of activation from these two sets of values shows thatdielectric relaxation process, like viscous flow, can also be treated as a rateprocess. From relaxation time behaviour of DMF and DMA binary mixture inbenzene solution, solute-solute type of molecular association is proposed.

• 社団法人日本物理学会の論文
• 1984-12-15

著者

• Sharma A

  Electronics Research Laboratory Department Of Physics Himachal Pradesh University

• K. SHARMA

  Electronics Research Laboratory,Department of Physics,Himachal Pradesh University

• R. SHARMA

  Electronics Research Laboratory,Department of Physics,Himachal Pradesh University

• Sharma D

  Himachal Pradesh Univ. Shimla Ind

• Sharma A.K.

  Electronics Research Laboratory,Department of Physics,Himachal Pradesh University

• Sharma D.R.

  Electronics Research Laboratory,Department of Physics,Himachal Pradesh University

• Sharma D.R.

  Electronic Research Laboratory,Department of Physics,Himachal Pradesh University

関連論文

• Dielectric Relaxation Studies of Binary Mixtures of N,N-Dimethylformamide and N,N-Dimethylacetamide in Benzene Solutions Using Microwave Absorption Technique
• Dielectric Relaxation of dimethylsulphoxide in Benzene and Carbontetrachloride Solutions from Microwave Absorptions Studies

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