Silicon core–iron siloxane shell nanoparticle polymer composites with multiferroic properties
ABSTRACT
Multiferroic (MF) composites based on nanoparticles consisting of a silica core and a shell of spin‐variable Fe(III) complexes in a polymer matrix (polystyrene) were synthesized and characterized by different methods. The nanoparticles had the formula 80SiO2·20{Fe[OSi(Me)(OEt)2]3}, and their particle size was on the order of 5–7 nm. Dielectric and electron spin resonance studies showed the presence of two types of Fe ions in the nanocomposite. Iron ions in the low‐spin state [Fe(III)‐LS] and iron ions in the high‐spin state [Fe(III)‐HS], which were bound by indirect exchange interactions through oxygen and silicon atoms {[Fe(III)‐LS]─O─Si─O─[Fe(III)‐HS]} were responsible for the MF properties of the composites with core–shell nanoparticles. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47681.
Top-30
Journals
|
1
|
|
|
Macromolecular Materials and Engineering
1 publication, 50%
|
|
|
Journal of Organometallic Chemistry
1 publication, 50%
|
|
|
1
|
Publishers
|
1
|
|
|
Wiley
1 publication, 50%
|
|
|
Elsevier
1 publication, 50%
|
|
|
1
|
- We do not take into account publications without a DOI.
- Statistics recalculated weekly.