Premium
Dielectric and ultrasonic absorption in some linear polyamides
Author(s) -
Aziz A. W.,
AbdElNour K. N.
Publication year - 1984
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.1984.070290818
Subject(s) - polyamide , intermolecular force , dielectric , materials science , hydrogen bond , ultrasonic sensor , absorption (acoustics) , attenuation , analytical chemistry (journal) , chemistry , optics , polymer chemistry , composite material , molecule , physics , organic chemistry , acoustics , optoelectronics
The dielectric behavior of some linear polyamides has been studied over a frequency range from 10 2 to 10 5 Hz between 20°C and 90°C. Also the change in attenuation of longitudinal ultrasonic waves has been measured as a function of frequency and temperature. Analysis of the results shows α‐ and β‐ relaxations. The movement of amide protons involved in intermolecular hydrogen bonds is also noticed.