Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Y. Gallot"'
Publikováno v:
Europhysics Letters (EPL). 62:746-752
The segmental ordering within the sublayers of a lamellar polystyrene-poly dimethylsiloxane-polystyrene triblock (PS-PDMS-PS) is examined by NMR. The carbon and deuterium NMR line shapes of the PDMS sequence (soft block) reveal clearly a wide distrib
Publikováno v:
European Physical Journal E: Soft matter and biological physics
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2002, 8 (4), pp.355-363. ⟨10.1140/epje/i2001-10071-1⟩
European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2002, 8 (4), pp.355-363. ⟨10.1140/epje/i2001-10071-1⟩
International audience; This paper reports an experimental study of a homogeneous nucleation process in the direct space, using an atomic-force microscope. Nucleated patterns are holes in a thin diblock copolymer film. The formation of nuclei from th
Publikováno v:
The European Physical Journal E. 7:261-266
The chain segment dynamics in the bulk lamellar phase of polystyrene-polydimethylsiloxane (PS-PDMS) block copolymers has been probed by NMR. The experiments were performed on a PS-PDMS diblock and on a PS-PDMS-PS triblock with twice the molecular wei
Autor:
Spiros H. Anastasiadis, Andreas F. Terzis, Y. Gallot, Chris Toprakcioglu, D.L. Anastassopoulos, G. S. Smith, A. Menelle, Georges Hadziioannou, Haris Retsos, R.E Gill, Doros N. Theodorou
Publikováno v:
Macromolecules, 35(3), 1116-1132. AMER CHEMICAL SOC
The configuration of polymer chains end-adsorbed at a surface from the melt is probed by taking advantage of the interfacial segregation of diblock copolymers to the substrate/polymer interface from their mixtures with homopolymers in thin films as a
Autor:
Spiros H. Anastasiadis, Y. Gallot, Kiriaki Chrissopoulou, Lampros Papoutsakis, Gerald Fleischer, G. Fytas
Publikováno v:
Macromolecules. 35:522-528
The relaxation of composition fluctuations of diblock copolymers in the intermediate wavevector range 0.08 < q/q* < 0.61 is investigated by photon correlation spectroscopy, thus bridging the q/q* ≪...
Autor:
Dominique Ausserre, Hans J. Lauter, Boris P. Toperverg, O. Nikonov, Y. Gallot, V. Lauter-Pasyuk
Publikováno v:
Physica B: Condensed Matter. 283:60-64
The distorted wave born approximation (DWBA)-based theory is developed and employed to analyze off-specular neutron scattering from islands on the surface of deuterated polystyrene–polybutylmethacrylate (dPS–PBMA) copolymer film. It is shown that
Autor:
Dominique Ausserre, Guillaume Vignaud, Jean-François Legrand, S Joly, Gerhard Grübel, Alain Gibaud, Y. Gallot
Publikováno v:
Physica B: Condensed Matter. 248:250-257
X-ray specular reflectivity studies of symmetric PS/PBMA (polystyrene/polybutylmethacrylate) diblock copolymer thin-films deposited on silicon substrates are presented. Films of different thickness in the disordered state are annealed for times rangi
Publikováno v:
The European Physical Journal B. 2:93-99
This paper presents on one hand the experimental study of the coalescence kinetics of two closed bidimensional fluid domains at the surface of a multilayered dibloc copolymer film, and on the other hand a numerical simulation of the same evolution. T
Autor:
Gerhard Grübel, Alain Gibaud, Guillaume Vignaud, S. K. Sinha, Jinlan Wang, Y Gallot, Jean Daillant
Publikováno v:
Journal of Physics: Condensed Matter. 9:L125-L130
A study of the specular and off-specular (diffuse) x-ray scattering of a diblock copolymer is presented. In the ordered state the surface of the diblock copolymer is covered with islands. It is shown that the periodicity in the ordered state in the d
Publikováno v:
Physical Review Letters. 77:4394-4397