The role of charged surfactants in the thermal and structural properties of lyotropic liquid crystalline mesophases of [Zn(H2O)6](NO3)2-CnEOm-H2O

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dc.citation.epage116en_US
dc.citation.issueNumber1en_US
dc.citation.spage109en_US
dc.citation.volumeNumber341en_US
dc.contributor.authorAlbayrak, C.en_US
dc.contributor.authorSoylu, A. M.en_US
dc.contributor.authorDag, Ö.en_US
dc.date.accessioned2016-02-08T10:00:34Z
dc.date.available2016-02-08T10:00:34Z
dc.date.issued2010en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractThe mixtures of [Zn(H2O)6](NO3)2 salt, 10-lauryl ether (C12H25(OCH2CH2)10OH, represented as C12EO10), a charged surfactant (cetyltrimethylammonium bromide, C16H33N(CH3)3Br, represented as CTAB or sodium dodecylsulfate, C12H25OSO3Na, SDS) and water form lyotropic liquid crystalline mesophases (LLCM). This assembly accommodates up to 8.0 Zn(II) ions (corresponds to about 80% w/w salt/(salt + C12EO10)) for each C12EO10 in the presence of a 1.0 CTAB (or 0.5 SDS) and 3.5 H2O in its LC phase. The salt concentration can be increased by increasing charged surfactant concentration of the media. Addition of charged surfactant to the [Zn(H2O)6](NO3)2–C12EO10 mesophase not only increases the salt content, it can also increase the water content of the media. The charged surfactant-C12EO10 (hydrophobic tail groups) and the surfactant (head groups)-salt ion (ion-pair, hydrogen-bonding) interactions stabilize the mesophases at such salt high and water concentrations. The presence of both Br and NO 3 ions influences the thermal and structural properties of the [Zn(H2O)6](NO3)2–C12EO10–CTAB(or SDS)–H2O LLCM, which have been investigated using XRD, POM (with a hot stage), FT-IR and Raman techniques.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:00:34Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2010en
dc.identifier.doi10.1016/j.jcis.2009.09.038en_US
dc.identifier.eissn1095-7103
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/11693/22472
dc.language.isoEnglishen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.jcis.2009.09.038en_US
dc.source.titleJournal of Colloid and Interface Scienceen_US
dc.subjectC12EO10en_US
dc.subjectCTABen_US
dc.subjectSDSen_US
dc.subjectLyotropic liquid crystalsen_US
dc.subjectTransition metal salten_US
dc.subjectMesophaseen_US
dc.titleThe role of charged surfactants in the thermal and structural properties of lyotropic liquid crystalline mesophases of [Zn(H2O)6](NO3)2-CnEOm-H2Oen_US
dc.typeArticleen_US

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