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Liquid crystalline dendrimers based on cinnamates and coumarins

AuthorsCavero, Emma; Serrano, José Luis; Giménez, Raquel; Piñol, Milagros
Issue Date2016
PublisherTaylor & Francis
CitationLiquid Crystals 43(10): 1408-1421 (2016)
AbstractNew poly(propylene imine) (PPI) dendrimers modified at the periphery with mesomorphic 4-cyanobiphenyl units and cinnamate- or coumarin-based photoactive moieties were synthesised and structurally characterised. The photoactive moieties were structurally designed to be liquid crystalline compatible and to reduce the tendency towards crystallisation of the final material. Thermal and liquid crystal properties were studied by POM, DSC, TGA and XRD. The results show that all dendrimers displayed a smectic A mesophase. Dendrimers with high transparency in the visible region but with different absorption spectra were obtained, rendering materials that are easy to monitor in light-irradiation experiments.
Identifiersdoi: 10.1080/02678292.2016.1178349
e-issn: 1366-5855
issn: 0267-8292
Appears in Collections:(ICMA) Artículos
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