M. Krutyeva: Magneto-elastomeric nanocomposites with supramolecular activity
Description
Recently there is an increasing interest in functional polymer nanocomposites due to emerging novel applications ranging from sensors and plasmonics through stretchable electronics and smart coatings for energy conversion and human health. Further exploitation of the huge potential of functional nanocomposites requires full control of the underlying nanostructure and the interaction between the nanoparticles and the host matrix, e.g. by external fields.
The aim of this project is the synthesis and consecutive investigation of magneto-elastomeric nanocomposites with supramolecular activity. The nanocomposites will be composed of superparamagnetic iron oxide nanoparticles (SPIONs) and a matrix consisting of rubbery 1,4- polyisoprene (PI) or polyalkylene oxides like polybutylene oxide (PBO). These hybrid materials allow classical magnetically induced ordering effects especially at lower matrix viscosities. Therefore we will focus our work first on only moderately entangled polymers. We will subsequently functionalize the polymers and SPIONs with supramolecular groups on the basis of hydrogen bonds. As such, this will allow ordering effects in magnetic fields at elevated temperatures, i.e. in the case of open supramolecular bonds. The structures can be “frozen-in” by cooling the system i.e. the state of closed supramolecular bonds, in a now elastomeric and even long entangled matrix, composed of the former short blocks. These blocks self-assemble linearly and provide control over the length and the viscosity of the embedding matrix. In the present funding period we plan to establish and investigate the basic systems without supramolecular functionality whereas in the subsequent funding period, in part 2 systems with supramolecular functionality will be examined.
Project Manager
Dr. Margarita Krutyeva, Forschungszentrum Jülich
Staff
Dr. Jürgen Allgaier, Forschungszentrum Jülich
Grant period
2013 -
Publications
Contact
Jülich Centre for Neutron Science JCNS (JCNS-1) & Institute for Complex Systems (ICS-1)
Forschungszentrum Jülich GmbH
52425 Jülich