Molecular design of POSS core star polyimides as a route to low-? dielectric materials

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dc.authoridSEÇKİN, Turgay/0000-0001-8483-7366
dc.authoridADIGÜZEL, HALIL IBRAHIM/0000-0002-5394-852X
dc.authorwosidKöytepe, Süleyman/AAA-4168-2021
dc.authorwosidSEÇKİN, Turgay/ABG-7537-2020
dc.authorwosidADIGÜZEL, HALIL IBRAHIM/AAA-4115-2021
dc.contributor.authorSeckin, Turgay
dc.contributor.authorKoeytepe, Sueleyman
dc.contributor.authorAdiguezel, H. Ibrahim
dc.date.accessioned2024-08-04T20:31:02Z
dc.date.available2024-08-04T20:31:02Z
dc.date.issued2008
dc.departmentİnönü Üniversitesien_US
dc.description.abstractStar polyimides incorporating the polyhedralsilsesquioxane (POSS-NH2) unit were prepared by in situ curing of polyamic acid macromolecules with amino POSS, octa (aminopropylsilsesquioxane), for the molecular-level design of low dielectric constant (low-kappa) materials that can be used to manufacture integrated circuits. Octameric POSS-NH2 having restricted rotation by multiple point attachment to the polyimide backbone is shown to introduce free volume into the films, thereby lowering their dielectric constants. A process for synthesizing POSS-polyimide star nanocomposites is reported, comprising a step forming porous-type POSS and subsequent step with polyimide precursor. The POSS-NH2 containing polyimides exhibit a number of desirable properties including low-water absorption and high thermal stability. Systematic studies demonstrate that proper insertion of POSS into a polyimide backbone can give rise to a reduction in the material's dielectric constant while also improving its mechanical and thermal properties. (C) 2008 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTurkish Research Council (TUBITAK) [105T386]en_US
dc.description.sponsorshipAuthors wish to thank Turkish Research Council (TUBITAK) for the research grant (105T386).en_US
dc.identifier.doi10.1016/j.matchemphys.2008.07.017
dc.identifier.endpage1046en_US
dc.identifier.issn0254-0584
dc.identifier.issn1879-3312
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-55749111532en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1040en_US
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2008.07.017
dc.identifier.urihttps://hdl.handle.net/11616/94691
dc.identifier.volume112en_US
dc.identifier.wosWOS:000262183900058en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Chemistry and Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChemical synthesisen_US
dc.subjectInorganic compoundsen_US
dc.subjectElectron microscopyen_US
dc.subjectDielectric propertiesen_US
dc.titleMolecular design of POSS core star polyimides as a route to low-? dielectric materialsen_US
dc.typeArticleen_US

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