Skip to main content Accessibility help
×
Home

Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles

  • Alessandro Chiolerio (a1), Paolo Allia (a2), Paola Tiberto (a3), Lorenza Suber (a4), Giada Marchegiani (a2) (a4) and Marco Sangermano (a2)...

Abstract

Acrylic based films containing thermo-chemically synthesized magnetite nanoparticles (NPs) were prepared by UV-curing. A stable dispersion of Fe3O4 NPs in n-hexane was added to polyethylene glycol diacrylate (PEGDA) oligomer or to hexanediol diacrylate (HDDA) oligomer, producing a blend whose viscosity matches the processing requirements for inkjet printing technology. Morphologic characterization is provided by means of Field Effect SEM on a representative nanocomposite section.

By real-time FT-IR analysis it was shown that Fe3O4 NPs are able to initiate radical chain-grown polymerization under UV light, for what concerns the HDDA matrix. Tight cross-linked transparent polymeric films were obtained after 1 minute of UV irradiation.

The magnetic properties of the produced films were studied by means of an Alternating-Gradient Force Magnetometer (AGFM) in the temperature range 10 – 300 K and up to 18 kOe. The isothermal magnetization curves of both HDDA and PEGDA -based nanocomposites showed that these hybrid systems must be described as interacting superparamagnets (ISP) characterized by inter-particle magnetic interactions dominating over intra-particle effects.

Copyright

References

Hide All
1. Li, S., Lin, M. M., Toprak, M. S., Kim, D. K., Muhammed, M. (2010) Nano Rev. 1: 5214-1–5214-19. doi:10.3402/nano.v1i0.5214.
2. Chiolerio, A., Vescovo, L., Sangermano, M. (2010) Macromol. Chem. Phys. 211: 2008–2016.
3. Chiolerio, A., Sangermano, M. (2011) submitted to European Physical Journal E.
4. Gangopadhyay, R., De, A. (2000) Chem. Mater. 12: 608–622. doi: 10.1021/cm990537f.
5. Shull, R. D., Kerch, H. M., Ritter, J. J. (1994) J. Appl. Phys. 75: 6840–6842. doi:10.1063/1.356802.
6. Sohn, B. H., Cohen, R. E., Papaefthymiou, G. C. (1998) J. Magn. Magn. Mater. 182: 216–224.
7. Allia, P., Tiberto, P., Coisson, M., Chiolerio, A., Celegato, F., Vinai, F., Sangermano, M., Suber, L., Marchegiani, G. (2010) J. Nanopart. Res. accepted for publication.
8. Sangermano, M., Vescovo, L., Pepino, N., Chiolerio, A., Allia, P., Tiberto, P., Coisson, M., Suber, L., Marchegiani, G. (2010) Macromol. Chem. Phys. 211 2530–2535.
9. Zhang, X. X., Hernandez, J. M., Tejeda, J., Phys. Rev. 1996, B54, 1.
10. Awschalom, D. D., Di Vincenzo, D. P., Smith, J. F., Science 1992, 258, 414.
11. Papaefthymiou, G. C., Phys. Rev. 1992, B46, 10366.
12. Sun, S., Zeng, H., Robinson, D. B., Raoux, S., Rice, P. M., Wang, S. X., Li, G., J. Am. Chem. Soc. 2002, 124, 8204.
13. Cullity, B. D. (1972) “Introduction to Magnetic Materials”, Addison-Wesley, Reading.
14. Allia, P., Coisson, M., Tiberto, P., Vinai, F., Knobel, M., Novak, M. A., Nunes, W. C. (2001) Phys. Rev. B 64: 144420-1–144420-12. doi: 10.1103/PhysRevB.64.144420.

Keywords

Magnetic properties of acrylic UV-cured films containing magnetite nanoparticles

  • Alessandro Chiolerio (a1), Paolo Allia (a2), Paola Tiberto (a3), Lorenza Suber (a4), Giada Marchegiani (a2) (a4) and Marco Sangermano (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed