Luminescent N-heterocycles based molecular backbone interleaved within LDH host structure and dispersed into polymer - ENSAE Paris Accéder directement au contenu
Article Dans Une Revue Applied Clay Science Année : 2020

Luminescent N-heterocycles based molecular backbone interleaved within LDH host structure and dispersed into polymer

Résumé

A pyrazino-1,3a,6a-triazapentalene dye-based molecule was intercalated by direct co-precipitation method into the galleries of negatively charged layered double hydroxide (LDH) to form a new luminescent LDH filler. The materials of cation composition Zn/Al = 2 lead to well-defined organic inorganic assemblies. The structure of the hybrid materials was characterized by X-ray diffraction (XRD), Fourier-transform infrared spectra (FTIR) and UV–visible spectra. Optical properties of the materials, at both solid state and slurry state, were also recorded and absolute photoluminescent quantum yields (PLQY) were determined showing that the nanohybrid LDH slurry exhibited higher luminescence properties under UV excitation than the corresponding LDH powder. LDH fillers were used to prepare composite films by dispersion in both hydrophobic or hydrophilic polymer matrix such as poly (dimethyl siloxane) (PDMS) and poly(ethylene oxide) (PEO), respectively. Composite films were characterized by Small Angle X-ray Scattering (SAXS) and PLQY were recorded in order to compare the behaviour of the nanohybrid LDH filler in both polymer matrices. It was found that the aggregation of particles is still observed by SAXS.

Domaines

Chimie Matériaux
Fichier principal
Vignette du fichier
Leroux (Applied Clay Sci 2020) (heterocycle).pdf (1.69 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02536944 , version 1 (20-11-2020)

Identifiants

Citer

Paul Legentil, Geneviève Chadeyron, Sandrine Therias, Nicolas Chopin, Doina Sirbu, et al.. Luminescent N-heterocycles based molecular backbone interleaved within LDH host structure and dispersed into polymer. Applied Clay Science, 2020, 189, pp.105561. ⟨10.1016/j.clay.2020.105561⟩. ⟨hal-02536944⟩
134 Consultations
106 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More