Browsing Artículos by Author "Etxeberria, Haritz"
Now showing items 1-6 of 6
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Controlled placement of polystyrene-grafted CdSe nanoparticles in self-assembled block copolymers
Etxeberria Altuna, Haritz; Zalakain, Iñaki; Fernández Salvador, Raquel; Kortaberria Altzerreka, Galder; Mondragón Egaña, Iñaki Bixintxo (Springer Nature, 2013)Surface functionalization of semiconductor CdSe nanoparticles has been achieved with polystyrene (PS) brushes by “grafting from” technique for further addition to a polystyrene-b-polybutadiene-b-polystyrene (SBS) block ... -
Effect of CdSe nanoparticle addition on nanostructuring of PS-b-P4VP copolymer via solvent vapour exposure
Etxeberria Altuna, Haritz; Fernández Salvador, Raquel; Zalakain, Iñaki; Mondragón Egaña, Iñaki Bixintxo; Eceiza Mendiguren, María Azanzazu; Kortaberria Altzerreka, Galder (Elsevier, 2013-10-28)The surface morphology of poly(styrene-b-4 vinyl pyridine) (PS-b-P4VP) diblock copolymer thin films after solvent vapor annealing has been studied. Morphological features can be switched upon exposure to vapors of a ... -
Effect of different aqueous synthesis parameters on the size of CdSe nanocrystals
Etxeberria Altuna, Haritz; Kortaberria Altzerreka, Galder; Zalakain, Iñaki; Larrañaga, Aitor ; Mondragón Egaña, Iñaki Bixintxo (Springer Nature, 2012-06-30)The variation of CdSe nanoparticle size as a function of synthesis conditions is presented. Cadmium sulphate (CdSO4), cadmium chloride (CdCl2) and sodium selenosulphate (Na2SeSO3) solutions were used as precursors. ... -
Enhanced stability of photo-induced anisotropy due to intermolecular interactions in an azo-prepolymer confined in block copolymer
Fernández Salvador, Raquel; Etxeberria Altuna, Haritz; Eceiza Mendiguren, María Aranzazu; Tercjak, Agnieszka (Elsevier, 2013-02-08)Many efforts in the field of azobenzene-containing polymers are concentrated on exploring new material concepts to obtain efficient and stable photo-induced anisotropy. Here, an easy approach to improve the birefringent ... -
Generation of nanocomposites based on polystyrene grafted CdSe nanoparticles by grafting through and block copolymer
Etxeberria Altuna, Haritz; Zalakain, Iñaki; Mondragón Egaña, Iñaki Bixintxo; Eceiza Mendiguren, María Aranzazu; Kortaberria Altzerreka, Galder (Springer Nature, 2013-02-23)Continuing with our previous work, in which CdSe nanoparticles were functionalized with polystyrene (PS) brushes (CdSe-PS) by grafting through method, nanocomposites were prepared by adding them to a poly (styrene-b-buta ... -
Nanostructuration of self-assembled poly(styrene-b-isoprene-b-styrene) block copolymer thin films in a highly oriented pyrolytic graphite substrate
Zalakain, Iñaki; Ramos, Jose Angel; Fernández Salvador, Raquel; Etxeberria Altuna, Haritz; Mondragón Egaña, Iñaki Bixintxo (Elsevier, 2011-01-03)Highly oriented pyrolitic graphite (HOPG) is a useful substrate to visualize epitaxial formation due to its crystallographic structure. The morphology of a poly(styrene-b-isoprene-b-styrene) block copolymer thin film on a ...