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dc.contributor.authorSartinska, Lina
dc.contributor.authorDeligoz, Huseyin
dc.contributor.authorEREN, Tarık
dc.contributor.authorUlutas, Kemal
dc.contributor.authorHÜNER, Keziban
dc.date.accessioned2021-03-05T16:38:35Z
dc.date.available2021-03-05T16:38:35Z
dc.date.issued2018
dc.identifier.citationHÜNER K., Ulutas K., Deligoz H., Sartinska L., EREN T., "ROMP-based boron nitride composites", JOURNAL OF APPLIED POLYMER SCIENCE, cilt.135, 2018
dc.identifier.issn0021-8995
dc.identifier.otherav_c1974aee-07e2-45b0-baea-169e74197b24
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/128492
dc.identifier.urihttps://doi.org/10.1002/app.45658
dc.description.abstractThe present work focuses on the investigation of the thermal and dielectric properties of composites obtained by surface-modified hexagonal boron nitride (hBN) and ring-opening metathesis polymerization (ROMP) based polymer. A new kind of high performance composites was developed based on using amino silane functionalized hBN (AS-hBN) and bromine functional group possessing homo and copolymers synthesized via ROMP pathway. Aminosilane capped boron nitride (BN) and bromine bearing polymer backbone enhance the interaction between filler and the polymer chains. The effects of surface-modified BN (AS-hBN) and its content on the dielectric properties, and thermal resistance of composites, are systematically investigated and discussed. The resultant composites possess high electrical break over voltages. While all of the ROMP-based films exhibit low value in a wide frequency range, in the case of the composite with 20% AS-hBN and poly(bromooxanorbornene-co-cyclooctadiene) (ROMP-BN-6) displays very low dielectric constants in around 1.5 up to 1 MHz at 20 degrees C. This value is significantly lower than that of common polymer dielectrics, which is usually in the range of 3-6. Besides the lowest dielectric constant of ROMP-BN-6, it has also the smallest dielectric loss tangent even at high temperatures. Tan of ROMP-BN-6 is 0.003 and 0.0067 at 10 Hz-1 MHz at 20 degrees C, respectively. Thermal stability of polymers was also improved by introducing surface-modified hBN. Polymers bearing 20% AS-hBN are highly thermally stable up to similar to 350 degrees C and gave 25% char yield at 800 degrees C. (C) 2017 Wiley Periodicals, Inc.
dc.language.isoeng
dc.subjectKimya
dc.subjectTemel Bilimler
dc.subjectPolimer Karakterizasyonu
dc.subjectFizikokimya
dc.subjectTemel Bilimler (SCI)
dc.subjectPOLİMER BİLİMİ
dc.titleROMP-based boron nitride composites
dc.typeMakale
dc.relation.journalJOURNAL OF APPLIED POLYMER SCIENCE
dc.contributor.departmentYıldız Teknik Üniversitesi , Rektörlük ,
dc.identifier.volume135
dc.identifier.issue2
dc.contributor.firstauthorID249861


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