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Molecular design and photophysical properties of acylamido side functionalized polysiloxanes with lanthanide ions as luminescent centers

Paper ID Volume ID Publish Year Pages File Format Full-Text
27799 44043 2010 6 PDF Available
Title
Molecular design and photophysical properties of acylamido side functionalized polysiloxanes with lanthanide ions as luminescent centers
Abstract

Two series of acylamido side functionalized polysiloxanes were designed and synthesized from the modifications of amino silane with different acylating agents. They were complexed with lanthanide ions (Tb3+, Eu3+, Dy3+ and Sm3+) to obtain functionalized polysiloxane–lanthanide ions composite materials and exhibit the molecular assembly behaviors. The structures of products were characterized by Fourier transform infrared (FT-IR), 1H-NMR spectra and diffuse reflectance ultraviolet–visible spectra (DRUVS). Thermal stability was investigated by thermogravimetric analysis (TGA). Narrow-width red and green emissions of the functionalized polysiloxane–lanthanide ions complexes were recorded under the exposure to ultraviolet light. The results show that four kinds of lanthanide ions were all cooperated successfully with the functionalized polysiloxanes and an intra-molecular energy transfer process took place in these systems. Further investigations into the luminescence properties of the functionalized polysiloxane–lanthanide ions composite materials show that the triplet state energy of the benzoylamido side functionalized polysiloxane is more suitable for the emissive energy level of lanthanide ions than that of acetamido side functionalized polysiloxane. According to the rules between photophysical properties and diverse chromophoric conjugate groups, we could design and control the properties of the polysiloxane–lanthanide ion assembly complexes.

Keywords
Acylamido-functionalized polysiloxane; Lanthanide ion; Luminescence; Molecular design; Photophysical property
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Molecular design and photophysical properties of acylamido side functionalized polysiloxanes with lanthanide ions as luminescent centers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 215, Issue 1, 5 September 2010, Pages 46–51
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us