Self-Assembly of Well Defined PS-b-PDMS Copolymers in Bulk and in Selective Solvent

• Authors: Ninago, Mario Daniel; Ciolino, Andrés Eduardo; Villar, Marcelo Armando; Giacomelli, Fernando C.; Cernoch, Petr; Stepánek, Petr; Schmidt, Vanesa; Giacomelli, Cristiano
• Publication Year: 2009
• Language: English
• Format: article
• Status: Published version
• Description: The synthesis of poly(styrene)-block-poly(dimethylsiloxane) (PS-b-PDMS) copolymers through sequential anionic polymerization, and their self-assembly behavior in bulk (thin films) and in solution (nanoparticles) is herein reported. The results obtained in bulk showed the formation of original island-type nanostructures with periodic separation and uniform height for thin films prepared by spin coating on silicon substrates followed by thermo- or solvent annealing, as evidenced by atomic force microscopy (AFM). In selective solvent (dimethylformamide), micellar core (PDMS) - shell (PS) nanoparticles originated upon direct dissolution, and the corresponding structure was determined in details by combining static and dynamic light scattering (SDLS) measurements.; Fil: Ninago, Mario Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina; Fil: Ciolino, Andrés Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina; Fil: Villar, Marcelo Armando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina; Fil: Giacomelli, Fernando C.. Insitute of Macromolecular Chemistry; República Checa; Fil: Cernoch, Petr. Insitute of Macromolecular Chemistry; República Checa; Fil: Stepánek, Petr. Insitute of Macromolecular Chemistry; República Checa; Fil: Schmidt, Vanesa. Universidade de Caxias do Sul; Brasil; Fil: Giacomelli, Cristiano. Centro de Ciências Exatas E Tecnologia; Brasil
• Subject: model block copolymers; self-assembly; solution properties; nanoorganization; Otras Ingeniería Química; Ingeniería Química; INGENIERÍAS Y TECNOLOGÍAS
• Access level: Open access
• License: https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
• Institution: Consejo Nacional de Investigaciones Científicas y Técnicas
• OAI Identifier: oai:ri.conicet.gov.ar:11336/43274