Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 215, Issue 6, Pages 499-506Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201300698
Keywords
aggregation-induced emission; fluorescence; luminescent molecular rotors; structure-property relations; styrene-based polymers
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Funding
- La Fondazione Pisa under POLOPTEL [167/09]
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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. image
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