Premium
Dielectric relaxation of binary mixtures of alcohols with acrylic esters
Author(s) -
Dharmalingam K.,
Ramachandran K.,
Sivagurunathan P.,
Prabhakar Undre B.,
Khirade P. W.,
Mehrotra S. C.
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.27384
Subject(s) - dielectric , relaxation (psychology) , polymer chemistry , alcohol , cole–cole equation , reflectometry , materials science , thermodynamics , chemistry , inverse , analytical chemistry (journal) , time domain , organic chemistry , physics , mathematics , psychology , social psychology , geometry , optoelectronics , computer science , computer vision
A dielectric relaxation study on alcohol–acrylic ester binary mixtures has been carried out at different concentrations using time domain reflectometry (TDR). The least‐squares fit method has been used to obtain the dielectric parameters (the static dielectric constant ϵ 0 and the relaxation time τ). By using these parameters, the Bruggeman factor, the Kirkwood correlation factor, and excess inverse relaxation time were determined and discussed to yield information on the molecular structure and dynamics of the mixture. The ϵ 0 and τ values decreased with an increase in the percent of acrylic ester in alcohol for all the systems. The value of t increased with an increase in chain length of both the alcohol and acrylic ester, whereas the reverse trend is observed for ϵ 0 . © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008