Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1899
Title: Dispersion of organophilic Ag nanoparticles in PS-PMMA blends
Authors: Tüzüner, Şeyda
Demir, Mustafa Muammer.
Keywords: Heterostructures
Interfaces
Polymers
Surface properties
Silver
Issue Date: Jul-2015
Publisher: Elsevier Ltd.
Source: Tüzüner, Ş., and Demir, M. M. (2015). Dispersion of organophilic Ag nanoparticles in PS-PMMA blends. Materials Chemistry and Physics, 162, 692-699. doi:10.1016/j.matchemphys.2015.06.044
Abstract: Abstract The preparation of stable composites with well-controlled particle location is one of the challenges in formulating new polymer/nanoparticle mixtures. In this study, cetyltriammonium bromide (CTAB)-capped monodisperse Ag nanoparticles were prepared and mixed with an equimass blend of polystyrene (PS) and poly(methyl methacrylate) (PMMA) in solution. The surface of the blend film without nanoparticles showed spherical pits with a size of 4.5 μm in diameter. The integration of CTAB-capped nanoparticles into the blend film developed surface bumps with a size of 0.4 μm in diameter. The organophilic Ag nanoparticles were distributed heterogeneously in the immiscible PS-PMMA blend. When the diameter of particle domains reached approximately 20 nm, particles were preferentially located at the interface of the PS and PMMA domains. Larger particle domains with a diameter of 90 nm were found to be in the PMMA-rich phase. Isothermal post-treatment of the PS-PMMA/Ag composite films directs the particle domains into PS domains. Thermodynamic factors that contribute to the observed morphologies are discussed.
URI: http://doi.org/10.1016/j.matchemphys.2015.06.044
http://hdl.handle.net/11147/1899
ISSN: 0254-0584
0254-0584
1879-3312
Appears in Collections:Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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