G. Fytas

Publication List Details

Period

1992 - 2009

Number

114

Co-Authors

Chain and local dynamics of polyisoprene as probed by experiments and computer simulations (2003)

Doxastakis,M., Theodorou,D. N., Fytas,G., Kremer,F., Faller,R., Müller-Plathe,Florian, ...

The dynamics of designed short polyisoprene (PI) chains in the melt is investigated on a wide temperature window using dielectric relaxation spectroscopy and pulsed field gradient nuclear magnetic...

Phonons in colloidal systems (2003)

Penciu,R. S., Kriegs,H., Petekidis,G., Fytas,G., Economou,E. N.

Rich phonon spectra were observed experimentally by Brillouin spectroscopy in liquid, glassy, and crystalline state of colloidal systems of low and high elastic constant contrast. The nature of these...

Acoustic excitations in a self-assembled block copolymer photonic crystal (2003)

Urbas,A. M., Thomas,E. L., Kriegs,H., Fytas,G., Penciu,R. S., Economou,L. N.

High resolution Brillouin light scattering can sensitively detect acoustic phonons in concentrated solutions of a high molecular weight poly(styrene-b-isoprene) symmetric copolymer in toluene. This...

Acoustic excitations in a self-assembled block copolymer photonic crystal (2003)

Urbas, A. M., Thomas, E. L., Kriegs, H., Fytas, G., Penciu, R. S., Economou, L. N.

High resolution Brillouin light scattering can sensitively detect acoustic phonons in concentrated solutions of a high molecular weight poly(styrene-b-isoprene) symmetric copolymer in toluene. This...

Phonons in colloidal systems (2003)

Penciu, R. S., Kriegs, H., Petekidis, G., Fytas, G., Economou, E. N.

Rich phonon spectra were observed experimentally by Brillouin spectroscopy in liquid, glassy, and crystalline state of colloidal systems of low and high elastic constant contrast. The nature of these...

Chain and local dynamics of polyisoprene as probed by experiments and computer simulations (2003)

Doxastakis, M., Theodorou, D. N., Fytas, G., Kremer, F., Faller, R., Müller-Plathe, Florian, ...

The dynamics of designed short polyisoprene (PI) chains in the melt is investigated on a wide temperature window using dielectric relaxation spectroscopy and pulsed field gradient nuclear magnetic...

On the origin of the heterogeneous orientation dynamics of semiflexible polymers in solutions (2002)

Loppinet,B., Fytas,G., Petekidis,G., Sato,T., Wegner,Gerhard

Collective rotational motion in nondilute isotropic solutions of semirigid chains is sensitively probed by depolarized light scattering over a broad time range. The bit-nodal shape and the peculiar...

Pattern formation in homogeneous polymer solutions induced by a continuous-wave visible laser (2002)

Sigel,R., Fytas,G., Vainos,N., Pispas,S., Hadjichristidis,N.

We report an unexpected nonphotothermal material organization induced by continuous-wave visible laser light at low power levels. This effect is observed along the laser beam propagation direction in...

Phonons in colloidal crystals (2002)

Penciu,R. S., Kafesaki,M., Fytas,G., Economou,E. N., Steffen,W., Hollingsworth,A., ...

The dispersion curves of the phonons propagating in polycrystalline suspensions of hard-sphere colloids are measured by Brillouin scattering and calculated by band structure techniques. Acoustic-like...

Segmental dynamics of disordered styrene-isoprene tetrablock copolymers (2002)

Doxastakis,M., Chrissopoulou,K., Aouadi,A., Frick,B., Lodge,T. P., Fytas,G.

The local segmental dynamics of four styrene-b-isoprene-b- styrene-b-isoprene (SISI) tetrablock copolymers with different styrene composition f(s) and constant total degree of polymerization...

Strong isotopic labeling effects on the pressure dependent thermodynamics of polydimethylsiloxane/polyethylmethylsiloxane blends (2002)

Beiner,M., Fytas,G., Meier,G., Kumar,S.

Using photon correlation spectroscopy we show that isotopic labeling can strongly alter the pressure dependent thermodynamics of polydimethylsiloxane/polyethylmethylsiloxane blends, while each blend...

Structure and dynamics of nondilute polyfluorene solutions (2002)

Fytas,G., Nothofer,H. G., Scherf,Ullrich, Vlassopoulos,D., Meier,G.

The rotational and translational diffusion dynamics of newly synthesized polyfluorenes were studied by dynamic light scattering over a broad concentration range up to the lyotropic state. On the...

Strong isotopic labeling effects on the pressure dependent thermodynamics of polydimethylsiloxane/polyethylmethylsiloxane blends (2002)

Beiner, M., Fytas, G., Meier, G., Kumar, S.

Using photon correlation spectroscopy we show that isotopic labeling can strongly alter the pressure dependent thermodynamics of polydimethylsiloxane/polyethylmethylsiloxane blends, while each blend...

Phonons in colloidal crystals (2002)

Penciu, R. S., Kafesaki, M., Fytas, G., Economou, E. N., Steffen, W., Hollingsworth, A., ...

The dispersion curves of the phonons propagating in polycrystalline suspensions of hard-sphere colloids are measured by Brillouin scattering and calculated by band structure techniques. Acoustic-like...

On the origin of the heterogeneous orientation dynamics of semiflexible polymers in solutions (2002)

Loppinet, B., Fytas, G., Petekidis, G., Sato, T., Wegner, Gerhard

Collective rotational motion in nondilute isotropic solutions of semirigid chains is sensitively probed by depolarized light scattering over a broad time range. The bit-nodal shape and the peculiar...

Segmental dynamics of disordered styrene-isoprene tetrablock copolymers (2002)

Doxastakis, M., Chrissopoulou, K., Aouadi, A., Frick, B., Lodge, T. P., Fytas, G.

The local segmental dynamics of four styrene-b-isoprene-b- styrene-b-isoprene (SISI) tetrablock copolymers with different styrene composition f(s) and constant total degree of polymerization...

Structure and dynamics of nondilute polyfluorene solutions (2002)

Fytas, G., Nothofer, H. G., Scherf, Ullrich, Vlassopoulos, D., Meier, G.

The rotational and translational diffusion dynamics of newly synthesized polyfluorenes were studied by dynamic light scattering over a broad concentration range up to the lyotropic state. On the...

Pattern formation in homogeneous polymer solutions induced by a continuous-wave visible laser (2002)

Sigel, R., Fytas, G., Vainos, N., Pispas, S., Hadjichristidis, N.

We report an unexpected nonphotothermal material organization induced by continuous-wave visible laser light at low power levels. This effect is observed along the laser beam propagation direction in...

Novel 3-(2-adamantyl)pyrrolidines with potent activity against influenza A virus-identification of aminoadamantane derivatives bearing two pharmacophoric amine groups (2001)

Kolocouris, A, Kolocouris, N, Fytas, G, Foscolos, G B, ...

The 3-(2-adamantyl)pyrrolidines 8a-g, 14 were synthesized and evaluated for activity against influenza A virus. The parent N-H compound 14 was several times more active than amantadine against...

Synthesis and antiviral activity evaluation of some new aminoadamantane derivatives. 2 (1996)

Kolocouris, A, Foscolos, G B, Fytas, G, Padalko, E, ...

The synthesis of some new aminoadamantane derivatives is described. The new compounds were evaluated against a wide range of viruses [influenza A H1N1, influenza A H2N2, influenza A H3N2, influenza...