Scientific Results

Aggregation- Induced Emission of Tetraphenylethylene in Styrene- Based Polymers

Year: 2014

Authors: Iasilli G., Battisti A., Tantussi F., Fuso F., Allegrini M., Ruggeri G., Pucci A.

Autors Affiliation: Univ Pisa, Dipartimento Chim & Chim Ind, Pisa, Italy; Scuola Normale Super Pisa, NEST, Pisa, Italy; Ist Nanosci CNR, Pisa, Italy; Univ Pisa, Dipartimento Fis Enrico Fermi, INO CNR, Pisa, Italy; Univ Pisa, CNISM, Pisa, Italy

Abstract: In the present work, the preparation of different styrene-based polymer films containing small amounts of TPE and the evaluation of their photoluminescent behaviour is reported. When TPE is dispersed in a poor solvent or in a glassy PS matrix, the arrested intramolecular rotations of its aryls favour the strong emission of light centred at about 455-460 nm. Conversely, TPE fluorescence significantly weakens to a faint signal when good solvents or viscous but not glassy polymer matrices are used. Near-field optical microscopy correlates the fluorescence behaviour with the different matrix morphologies. These results should be able to be used for developing a new tool for polymer traceability. imageJournal/Review: MACROMOLECULAR CHEMISTRY AND PHYSICS

Volume: 215 (6)      Pages from: 499  to: 506

More Information: This work was supported by La Fondazione Pisa under \”POLOPTEL\” project no. 167/09. Alessandro Bacci is gratefully acknowledged for his valuable contribution in the SNOM measurements.
KeyWords: aggregation-induced emission; fluorescence; luminescent molecular rotors; structure-property relations; styrene-based polymers
DOI: 10.1002/macp.201300698

Citations: 32
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