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Dipolar relaxation behaviour in poly(methyl methacrylate)/4‐nitroaniline solid solutions
Author(s) -
Dionísio Madalena,
Ramos Joaquim J. Moura,
Williams Graham
Publication year - 1993
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990320206
Subject(s) - methyl methacrylate , methacrylate , polymer , relaxation (psychology) , materials science , poly(methyl methacrylate) , hydrogen bond , dielectric , polymer chemistry , chemical engineering , chemistry , organic chemistry , molecule , composite material , copolymer , psychology , social psychology , optoelectronics , engineering
In the present paper the dielectric properties of solid solutions of 4‐nitroaniline in a poly(methyl methacrylate) matrix have been measured in the frequency range 20‐10 6 Hz and the obtained data have been compared with those for pure poly(methyl methacrylate). It is shown that the presence of the solute has a strong influence on the relaxation process of the polymer and this is ascribed to the formation of hydrogen bonds between the amino group of the solute and acetate side groups of the polymer.