Darbe tirtos struktūrinės ir spektroskopinės dviejų šeimų nematinių skystakristalinių dendrimerų ištirpintų chloroforme savybės. Taip pat struktūrinės, spektroskopinės ir magnetooptinės dendrimerų su įterptomis Co nanodalelėmis savybės. Dviejų šeimų skystakristalinių dendrimerų ištirpintų chloroforme optiniai tyrimai parodė, kad pirmos šeimos skystakristalinių dendrimerų vidinę dalį nusakanti sugerties juosta antros ir penktos generacijų atžvilgiu yra paslinkusi per 8nm, tuo tarpu antros šeimos atitinkamai pirmos ir penktos generacijų atžvilgiu per 19nm. Dendrimerų su įterptomis Co nanodalelėmis magnetooptiniai tyrimai parodė, kad Co nanodalelės gali būti valdomos magnetiniais laukais. / Dendritic structure is one of the prevalent topologies on our planet [1]. Dendrimers is generally described as monodispersed low viscosity macromolecules with highly branched, well defined 3D structure, first reported in 1978 by Vögtle. They are always composed of a core molecule and dendritic branches extended from core to terminal groups [26]. The number of functional groups on the dendrimer surface increases exponentially as a function of generation, of that in the higher generations they become much more spherical and amplified highly ordered architectures. Liquid crystalline dendrimers of their unique structural and physical properties have attached considerable attention. Because of their hyper branched spherical structure, interior inside dendrimers have fixed cavities. Strong interaction forces in the terminal mesogenic units determine that in the interior can be incorporated atoms, ions, guest molecules or nanoparticles. They are particularly well suited materials for hosting nanoparticles of the following reasons: nanoparticles are stabilized and don’t agglomerate, dendrimer branches can be use as selective gates to control access of small molecules [19]. As result of their architecture, dendrimers can possess essential physical, chemical and biological properties and whole range of applications in energy, medicine, engineering, information technology and ect.
We present optical and structural studies of liquid crystalline poly(propylene imine) (PPI) dendrimers... [to full text]
| Identifer | oai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2007~D_20070816_175514-38826 |
| Date | 16 August 2007 |
| Creators | Franckevičius, Marius |
| Contributors | Bondarenko, Vladimiras, Banėnienė, Milia, Vaišnoras, Rimantas, Audzijonis, Algirdas, Rimeika, Alfonsas, Siroicas, Janas, Svirskas, Kęstutis, Lazauskaitė, Roma, Udris, Arvydas, Lazauskas, Valentinas, Rastenienė, Loreta, Vilnius Pedagogical University |
| Publisher | Lithuanian Academic Libraries Network (LABT), Vilnius Pedagogical University |
| Source Sets | Lithuanian ETD submission system |
| Language | Lithuanian |
| Detected Language | English |
| Type | Master thesis |
| Format | application/pdf |
| Source | http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_175514-38826 |
| Rights | Unrestricted |
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