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Infrared spectral analysis of low concentration magnetoactive polymers
Author(s) -
Prem Nina,
Sindersberger Dirk,
Monkman Gareth J.
Publication year - 2020
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.48366
Subject(s) - polymer , wavelength , fourier transform infrared spectroscopy , raman spectroscopy , absorption (acoustics) , characterization (materials science) , infrared , magnetic field , analytical chemistry (journal) , materials science , capillary action , chemistry , nanotechnology , optics , composite material , physics , organic chemistry , optoelectronics , quantum mechanics
This work concerns an area of magnetoactive polymer (MAP) research seldom considered. Traditionally only MAP with high concentrations of magnetic filler (typically between 10 and 90 wt%) have been investigated. This article deals with a hitherto neglected aspect of research, namely MAP containing lower magnetic filler concentrations (1 to 3 wt%). This article utilizes a range of spectroscopic analysis methods (Raman and FTIR) and their applicability to MAP characterization at wavelengths ranging from 2.5 to 25 μm. Particular attention is paid to low carbonyl iron particle (CIP) concentrations in MAP for which the emergence of capillary doublets at a critical 2 wt% concentration is revealed. This results in measurable magnetic field‐dependent changes in IR absorption at a wavelength of 4.255 μm together with a detectable CO 2 susceptibility. © 2019 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals Inc. J. Appl. Polym. Sci. 2020 , 137 , 48366.