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Citation: LIAKATH ALI KHAN F., SIVAGURUNATHAN P., MEHROTRA S. C.. Dielectric Relaxation Studies of Alkyl Acrylates on Complexation with Phenols Using Time Domain Reflectometry[J]. Acta Physico-Chimica Sinica, ;2007, 23(05): 709-712. doi: 10.3866/PKU.WHXB20070516 shu

Dielectric Relaxation Studies of Alkyl Acrylates on Complexation with Phenols Using Time Domain Reflectometry

1.
Annamalai University, Annamalai Nagar, Tamil Nadu-608 002, India; 2Dr. B.A.M. University, Aurangabad-431 004 Maharashtra, India

Received Date: 18 October 2006
Available Online: 18 April 2007

The dielectric relaxation measurements on binary mixtures of esters (methyl acrylate, ethyl acrylate, and butyl acrylate) with phenol derivatives (p-cresol, p-chlorophenol, and 2,4-dichlorophenol) were carried out at different concentrations at 303 K using the time domain reflectometry (TDR) over the frequency range from10 MHz to 20 GHz. The Kirkwood correlation factor and excess inverse relaxation time were determined and discussed to yield information on the molecular interactions of the systems. The relaxation time increased with increasing concentration of phenols and increasing chain length of esters. The excess inverse relaxation time values were negative for all the systems, which indicated the solute-solvent interaction existing between esters and phenols producing a field in such a way that the effective dipole rotation was hindered.
- Dielectric relaxation; Time domain reflectometry; Phenol derivatives
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