Irina Savchenko




Irina  Savchenko

POSITION
Professor of Macromolecular Chemistry Department

WORK EXPERIENCE
1994–1998
Assistant of Macromolecular Chemistry Department
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

19982014
Assoc. Professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2014Present
Professor
Taras Shevchenko national University of Kyiv, Kyiv (Ukraine)

EDUCATION AND TRAINING


1990
Chemist (analog of MSc)
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1990-1994
Post-graduate study (specialization in Macromolecular Chemistry)
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

1996
Doctor of Chemistry (analog of Ph.D.)
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2000
Assoc. Professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2006-2007
Doctorate
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2012
Doctor of Sciences
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)

2015
Professor
Taras Shevchenko National University of Kyiv, Kyiv (Ukraine)


Photoactive polymers and nanosystems for optoelectronics and other application

Research Fields:
Chemistry

Previous and Current Research

Main field of research
  • Photoactive polymers

Other fields
  • Polymer nanoparticles

Current research interest

  • azopolymers and azobenzene polycomplexes with metallic ions can be considered as attractive for application in information media sensitive for external electromagnetic influences;
  • polymer metal complexes based b-diketones and lanthanides for electroluminescent devices;
  • polymer layers immobilized on the inorganic particles as nanocomposites with new adsorption properties;
  • polymer nanoparticles as nanosystems for photo- and X-ray excited sensitising of singlet oxygen;
  • new photo switchable polymer materials with chromophore in side chain developing new polymer systems with different structures of photoactive fragments.

Group leader: Prof., Dr. Chem. Sci. Irina Savchenko

Our group is interested in synthesis and characterization of photoactive polymers. Our activities are on new photo switchable polymer materials with chromophore in side chain; developing new polymer systems with different structures of photoactive fragments.

Theoretical and practical bases of synthesis for alken-functionalized photoactive polymers by radical polymerization of monomers with double bonds of different reactivities.

Synthesis of polymer layers immobilized on the inorganic particles as nanocomposites with new adsorption properties.

Synthesis of polymer nanoparticles as nanosystems for photo- and X-ray excited sensitising of singlet oxygen.

The team consists 7 researchers, 2 technicians and about 6 PhD, 3 PhD students, Bachelor and Master students.

Organic light emitting diodes (OLEDs) are considered the next generation of technology for flexible flat panel displays and low cost solid state lighting. In particular, organic light emitting diodes that have the potential to achieve an internal quantum efficiency close to 100% have attracted considerable research interest.

A typical OLED is composed of a layer of organic materials situated between two electrodes, the anode and catode, all deposited on a substrate.

The emission color depends on the lanthanide ion but is largely independent of the environment of a given lanthanide ion.

a)b)

Fig.1 a) Structure of typical OLED; b) Scheme of energy transfer in Ln 3+ complexes


Photochemical properties of such polymers can be advantageous addressed for photonics and nonlinear optics. In addition, the spatial organizationof the active side chain residues along the polymeric backbone is of critical importance regarding mechanical and structural properties of the material. This allows by an optical control to give rise to encoded images at the nanoscale.


Fig.2 AFM three-dimensional view of azopolymers

Methodological and Technical Expertise

  • Chemical modeling of photoactive polymers
  • Synthesis of nanosystems into polymer matrices
  • All experimental approaches for characterization of polymers of complicated internal structure and nanosystems: self-exclusion chromatography, transmission electron microscopy, differential scanning calorimetry, viscometry, atom-force microscopy etc.

Selected Publications


K. Iliopoulos, O. Krupka, D. Gindre, M. Sallé
Reversible Two-Photon Optical Data Storage in Coumarin-Based Copolymers.
J. Am. Chem. Soc., 132 (41), (2010), 1434314345. (IF 13; WS 10/2016: 34 citations)

D. Gindre, K. Iliopoulos, O. Krupka, E. Champigny, Y. Morille, M. Sallé
Image storage in coumarin-based copolymer thin films by photoinduced dimerization.
Opt. Lett. 38, (2013), 4636-4639. (IF 3.04)

I. Papagiannouli, K. Iliopoulos, D.Gindre, B. Sahraoui, O. Krupka, V. Smokal, A. Kolendo
Third-order nonlinear optical response of push pull azobenzene polymers.
Chem. Phys. Lett., 544, (2012), 107-112. (IF 1.86, WS 10/2016: 46 citations)

R. Czaplicki, O. Krupka, Z. Essaidi, El-Ghayoury, J.G. Grote, F. Kajzar, B. Sahraoui.
Grating inscription in picosecond regime in thin films of functionalized DNA.
Optic Express, 15, (2007), 15268-15273 (IF 3.14 WS 10/2016: 43 citations)

H. El Ouazzani, K. Iliopoulos, M. Pranaitis, O. Krupka, V. Smokal, A. Kolendo, B. Sahraoui .
Second- and third-order nonlinearities of novel push-pull azobenzene polymers.
J. Phys. Chem. B 115, (2011), 1944-1949 (IF 3.14 WS 10/2016: 43 citations)

D. Gindre, K. Iliopoulos, O. Krupka, M. Evrard, E. Champigny, M. Sallé.
Coumarin-ontaining polymers for high density non-linear optical data storage.
Molecules, 21, (2016), 1-13 (IF 2.46)

Krupka, A. El-Ghayoury, I. Rau, B. Sahraoui, J.G. Grote, F. Kajzar.
NLO properties of functionalized DNA thin film.
O Thin Solid Films, 516, (2008), 89328936 (IF 1.76 WS 10/2016: 38 citations)

B. Derkowska-Zielinska, L. Skowronski, T. Kozlowski, V. Smokal, A. Kysil, A. Biitseva, O. Krupka.
Influence of peripheral substituents on the optical properties of heterocyclic azo dyes.
Optical Materials, 49, (2015), 325-329. (IF 2.18)

B. Kulyk, V. Kapustianyk, V. Tsybulskyy, O. Krupka, B. Sahraoui.
Optical properties of ZnO/PMMA nanocomposite films.
Journal of Alloys and Compounds, 502, (2010), 24-27. (IF 3.01 WS 10/2016: 34 citations)

O.Krupka, O. Nadtoka, V. Smokal, H. El Ouzzani, B. Sahraoui
Investigation of selected polymers with different azobenzene moieties for NLO application.
Proceedings of IEEE, - We.B2.6-2010.- vol. 10.1109, P. 5549153 (1-4). (IF 5.096)

Vretik L.O., Zagnij V.V., Nikolaeva O.A. and. Syromyatnikov V.G.
LC photoaligning polymer prepared via selective polymerization of bifunctional monomer with o-methacryloyl and styrene-type double bonds
Mol. Cryst. Liq. Cryst.- 2014.-vol.590, 1-.361-370. (IF 0.491)

L. A. Vretik, E. A. Nikolaeva, V.V. Zagnij and V. G. Syromyatnikov
Alkenyl-substituted Methacrylatess as bifunctional monomers in radical polymerization.
Polymer Science, Ser.B.-2014.- vol. 56, 6 .- P695-706.

Vretik L., Yaroshchuk O., Zagniy V., Kyrychenko V. and Syromyatnikov V.
New strategy in development of liquid crystal photoaligning materials with reactive C=C bonds
In book Nanoconposites, Nanophotonics, Nanobiotechnology, and Applications, Springer proceedings in Physics, Editor: Olena Fesenko, Leonid Yatsenko, Springer International Publishing Switzerland ISBN: 978-3-319-06610-3.- 2015.- P.95-101.

D. Kasyanyuk, N. Davidenko, I. Savchenko, Y. Kurioz, Y. Reznikov.
Electro and photosensitive azopolymer for alignment of liquid crystals.
OPTICS EXPRESS, 2015, Vol. 23, N 20, p. 26660-26669. IF 3,488

Contacts


iras@univ.kiev.ua