Fumed silica filled poly(dimethylsiloxane-urea) segmented copolymers: Preparation and properties

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dc.authorid0000-0003-3942-070X
dc.contributor.authorYılgör, Emel
dc.contributor.authorYılgör, İskender
dc.contributor.authorEynur, Tuğba
dc.contributor.authorSöz, Çağla
dc.contributor.authorMalay, Özge
dc.contributor.authorMenceloğlu, Yusuf Ziya
dc.contributor.authorWilkes, Garth L.
dc.date.accessioned2021-03-30T09:14:41Z
dc.date.available2021-03-30T09:14:41Z
dc.date.issued2011
dc.departmentTAÜ, Fen Fakültesi, Malzeme Bilimi ve Teknolojileri Bölümüen_US
dc.description.abstractNovel fumed silica filled thermoplastic poly(dimethylsiloxane-urea) (TPSU) segmented copolymers were synthesized and characterized. TPSU copolymers were prepared from a cycloaliphatic diisocyanate, aminopropyl terminated PDMS oligomers with number average molecular weights of 3,200, 10,800 and 31,500 g/mol and 2-methyl-1,5-diaminopentane chain extender. Two different types of fumed silica HDK H2000 (hydrophobic) and HDK N20 (hydrophilic) were utilized and incorporated into silicone-urea copolymers in amounts of 1–60% by weight. Influence of the silica type (hydrophilic versus hydrophobic), amount of silica loading and the PDMS soft segment molecular weight on the morphology, tensile properties and modulus-temperature behavior of the nanocomposites were determined. Major observations of this study were: (i) under the blending conditions used, incorporation of silica does not seem to interfere significantly with the hydrogen bonding between urea groups, (ii) incorporation of silica does not affect the glass transition temperature of PDMS, (iii) incorporation of silica influences the tensile and thermomechanical properties of silicone-urea segmented copolymers significantly, (iv) average molecular weight of the PDMS soft segment in the silicone-urea copolymer plays a critical role on the improvement of the tensile properties of the fumed silica/TPSU composites.
dc.identifier.citationYılgör, E., Eynur, T., Koşak Söz, Ç., Bilgin, S., Yılgör, İ., Malay, O., ... & Wilkes, G. L. (2011). Fumed silica filled poly (dimethylsiloxane-urea) segmented copolymers: Preparation and properties. Polymer, 52(19), 4189-4198.
dc.identifier.doi10.1016/j.polymer.2011.07.041
dc.identifier.endpage4198en_US
dc.identifier.issn0032-3861
dc.identifier.issue19en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage4189en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12846/566
dc.identifier.volume52en_US
dc.institutionauthorSöz, Çağla
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPolymer
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFumed Silicaen_US
dc.subjectSilicone copolymeren_US
dc.subjectNanocompositeen_US
dc.subjectPyrogene Kieselsäureen_US
dc.subjectSilikoncopolymeren_US
dc.subjectNanokompositen_US
dc.subjectNanokompoziten_US
dc.subjectTermoplastik Poliüretan-üreen_US
dc.subjectSilika Nanopartikülleren_US
dc.titleFumed silica filled poly(dimethylsiloxane-urea) segmented copolymers: Preparation and properties
dc.typeArticle

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