Highly luminescent hybrid materials based on smectites with polyethylene glycol modified with rhodamine fluorophore

摘要: Abstract Highly luminescent anisotropic materials are promising for light harvesting systems, sensors, solid lasers and optical devices. To achieve this, polyethylene glycol (PEG) was derivatized with a reactive rhodamine B (RhB) fluorophore to produce luminescent, water-soluble positively-charged polymer (RhPEG) that can be intercalated between layers of smectites. An optimal degree derivatization applied avoid fluorescence quenching. The properties RhPEG were similar those the RhB precursor. Colloids prepared using montmorillonite Kunipia (Mt) synthetic saponite Sumecton (Sap), polymer/smectite mass ratios 0.05–0.25, cast into thin films by vacuum filtration deposition technique. hybrid exhibited structure obtained intercalation non-modified PEG. Optical depended considerably on smectite type. made Sap, low charge density, negligibly induced molecular aggregation had high quantum yields, dilute solutions or RhPEG. On other hand, results spectroscopic methods indicated when Mt leading considerable quenching, making this material unsuitable fabrication photoactive films.