INVESTIGADORES
PIQUERAS Cristian Martin
congresos y reuniones científicas
Título:
Thickness dependent Ordering of Block Copolymer Films in a Supercritical Solvent
Autor/es:
ANABELLA A. ABATE; GIANG T. VU; C. M. PIQUERAS; L. GÓMEZ; FRIEDERIKE SCHMID; D. A. VEGA
Lugar:
Mar del Plata
Reunión:
Simposio; Simposio Iberoamericano de Polímeros; 2018
Institución organizadora:
UNMdP-Conicet
Resumen:
We examined the effect of sc-CO2 on cylinder-forming polystyrene-b-polybutadiene-b-polystyrene triblock copolymer (PS-PB-PS, Sigma-Aldrich, Mw = 140.000 g/mol) thin films. A homemade high pressure cell was used for supercritical annealing treatments at 40 °C and 90 bar during 2hs. Polymer film thicknesses were measured using a PHE101 ellipsometer (wavelength = 632.8 nm). The morphology was characterized at room temperature using atomic force microscopy (Innova, Bruker) operated in tapping mode.
