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7619858 
Journal Article 
SINGLET ELECTRONIC-ENERGY TRANSFER IN POLYMERS CONTAINING NAPHTHALENE AND ANTHRACENE CHROMOPHORES 
Holden, DA; Guillet, JE; , 
1980 
1 
Macromolecules
ISSN: 0024-9297
EISSN: 1520-5835 
AMER CHEMICAL SOC 
WASHINGTON 
13 
2 
289-295 
English 
WOS:A1980JN45600016 
The efficiency of singlet electronic energy transfer from poly(1 -naphthylmethyl methacrylate) and poly[2-(l-naphthyl)ethyl methacrylate] to anthracene end groups or copolymerized 9-anthrylmethyl methacrylate was measured as a function of trap density and solvent. Values of as high as 43% were obtained, even when anthracene constitutes only 0.5 mol % of the polymer. Fluorescence decay measurements and time-resolved spectroscopy show that energy transfer occurs over tens of nanoseconds and that the transfer time decreases with increasing naphthalene and anthracene concentrations. The proposed mechanism of energy migration involves a moderate number of Forster transfers between naphthalene chromophores, followed by Forster transfer to anthracene once the excitation energy has diffused to within about 2 nm of the anthracene chromophore. The results suggest that polymer chains can be efficient antennas for the collection and transport of photoexcitation energy. © 1980, American Chemical Society. All rights reserved.