Synthesis and liquid crystalline behavior of random copolymer of poly(ethylene oxide) macromonomer and liquid crystalline monomer by the photon transmission technique

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dc.authorid0000-0003-4447-3224
dc.authorid0000-0001-6213-5179
dc.authorid0000-0002-0082-8209
dc.authorid0000-0001-6244-6786
dc.contributor.authorYıldız, Sevtapen_US
dc.contributor.authorYılmaz, Faruken_US
dc.contributor.authorÖzbek, Haluken_US
dc.contributor.authorPekcan, Mehmet Önderen_US
dc.contributor.authorIto, Koichien_US
dc.contributor.authorYağcı, Yusufen_US
dc.date.accessioned2015-01-15T23:00:21Z
dc.date.available2015-01-15T23:00:21Z
dc.date.issued2005-12
dc.departmentIşık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.departmentIşık University, Faculty of Arts and Sciences, Department of Physicsen_US
dc.descriptionO. P. and Y. Y. thank the Academy of Sciences of Turkey (TUBA) for partial support.en_US
dc.description.abstractRandom copolymers of poly(ethylene oxide) macromonomer with p-vinylbenzyl end-functional group (PEOVB) and liquid crystalline monomer, namely 6-(4-cyanobiphenyl-4'-oxy)hexyl acrylate (COA), were prepared by conventional free radical polymerization. A living anionic polymerization technique was employed for the synthesis of PEO macromonomers bearing p-vinylbenzyl moiety at one end. The photon transmission method was also applied to study the phase transitions of COA monomer and its random copolymer with PEO. It was found that, for both samples, the nematic-smectic A transition is continuous, but the critical fluctuation regions do not allow to obtain 3D XY values. Instead, we have obtained the values close to mean field regime. Scaling of thermal hystersis for random copolymer sample near the nematic-isotropic transition was studied as well. Thermal hysteresis loops were produced under linearly varying temperature. It was shown that the areas of the hysteresis loops scale with the temperature scanning rate with an exponent being equal to 0.614 which is in good agreement with the field-theoretical value.en_US
dc.description.sponsorshipAcademy of Sciences of Turkeyen_US
dc.description.sponsorshipTUBAen_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationYıldız, S., Yılmaz, F., Özbek, H., Pekcan, M. Ö., Ito, K. & Yağcı, Y. (2005). Synthesis and liquid crystalline behavior of random copolymer of poly(ethylene oxide) macromonomer and liquid crystalline monomer by the photon transmission technique. Journal of Macromolecular Science - Pure and Applied Chemistry, 42(12), 1573-1588. doi:10.1080/10601320500246602en_US
dc.identifier.doi10.1080/10601320500246602
dc.identifier.endpage1588
dc.identifier.issn1060-1325
dc.identifier.issue12
dc.identifier.scopus2-s2.0-29144511530
dc.identifier.scopusqualityQ2
dc.identifier.startpage1573
dc.identifier.urihttps://hdl.handle.net/11729/195
dc.identifier.urihttp://dx.doi.org/10.1080/10601320500246602
dc.identifier.volumeA42
dc.identifier.wosWOS:000233717400001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorPekcan, Mehmet Önderen_US
dc.institutionauthorid0000-0002-0082-8209
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherTaylor & Francis Incen_US
dc.relation.ispartofJournal of Macromolecular Science - Pure and Applied Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTransfer radical polymerizationen_US
dc.subjectA tricritical pointen_US
dc.subjectPhase-transitionsen_US
dc.subjectThermal hysteresisen_US
dc.subjectCrossoveren_US
dc.subjectModelen_US
dc.subjectMethacrylateen_US
dc.subjectPolymersen_US
dc.subjectSystemsen_US
dc.subjectFielden_US
dc.subjectSmectic-a-phaseen_US
dc.subjectTricritical behavioren_US
dc.subjectTransitionsen_US
dc.subjectPolymerizationen_US
dc.subjectPointen_US
dc.titleSynthesis and liquid crystalline behavior of random copolymer of poly(ethylene oxide) macromonomer and liquid crystalline monomer by the photon transmission techniqueen_US
dc.typeArticleen_US
dspace.entity.typePublication

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