title: Synthesis and photophysical properties of colloids fabricated by the layer-by-layer polyelectrolyte assembly onto Eu(III) complex as a core.
abstract: The luminescent colloids have been synthesized through the layer-by-layer assembly of poly(sodium 4-styrenesulfonate) (PSS) and polyethyleneimine (PEI) onto the luminescent core. The latter has been obtained by the reprecipitation of complex Eu[(TTA)(3)1] (where TTA(-) and 1 are thenoyltrifluoroacetonate and 2-(5-chlorophenyl-2-hydroxy)-2-phenylethenyl-bis-(2-methoxyphenyl)phosphine oxide, respectively) from organic solvent to aqueous solution. The variation of Eu(III) complexes indicates the role of the complex core in the development of such core-shell colloids. Complex Eu[(TTA)(3)1] is most convenient precursor of Eu-doped luminescent nanocomposites. The fluorometric measurements at each step of the layer-by-layer polyelectrolyte assembly onto Eu[(TTA)(3)1] core, at various pHs and additives reveal the quenching of Eu-centered luminescence as a result of the interfacial interaction of the core and the dye. The AFM images and electrochemical behavior of PSS-(PEI-PSS)(n)-Eu[(TTA)(3)1] colloids deposited on the surface indicate the stability of the polyelectrolyte multilayer in the dried state.
authors.affiliation: AE Arbuzov Institute of Organic and Physical Chemistry, Kazan, Russia. asiyamust@mail.ru
authors.forename: Asiya
authors.initials: A
authors.lastname: Mustafina
authors.forename: Rustem
authors.initials: R
authors.lastname: Zairov
authors.forename: Margit
authors.initials: M
authors.lastname: Gruner
authors.forename: Alsu
authors.initials: A
authors.lastname: Ibragimova
authors.forename: Dmitry
authors.initials: D
authors.lastname: Tatarinov
authors.forename: Irek
authors.initials: I
authors.lastname: Nizameyev
authors.forename: Nataliya
authors.initials: N
authors.lastname: Nastapova
authors.forename: Vitaly
authors.initials: V
authors.lastname: Yanilkin
authors.forename: Marcil
authors.initials: M
authors.lastname: Kadirov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Mironov
authors.forename: Alexander
authors.initials: A
authors.lastname: Konovalov
mesh_terms: D003102:Colloids / Q000138:chemical synthesis / Q000737:chemistry*; D004563:Electrochemistry; D011108:Polymers / Q000737:chemistry*
chemical_list: D003102:Colloids; D011108:Polymers