Rigid, well-defined block copolymers for efficient light harvesting

Journal Article · Wed Jul 13 00:00:00 EDT 1994 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00093a057· OSTI ID:6914726

Watkins, D M; Fox, M A ^[1]

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1. Univ. of Texas, Austin, TX (United States)

Chromophore-labeled polymers have been studied extensively for their potential application in long-distance energy and electron transfer. The conformational flexibility of most organic polymers, however, has prevented the successful transfer of energy over extended distances because polymer folding permits energy dissipative excimer or exciplex formation. In addition, the limited number of methods available to prepare well-defined photosensitizer-derivatized block copolymers has hindered the use of polymers as media for macroscopic photoinduced electron transfer. We report the synthesis and photophysical characteristics of a series of well-defined chromophore- and quencher-labeled block copolymers whose rigidity obviates these problems and permits interblock energy and electron transfer. We have prepared arene-derivatized polynorbornene homopolymers I, arene-dimethylaniline diblock copolymers II, and naphthalene-pentamethylbenzene-dimethylaniline triblock copolymers, III, of varying molecular weights and block lengths. 10 refs., 3 figs.

• OSTI ID: 6914726
• Journal Information: Journal of the American Chemical Society; (United States), Vol. 116:14; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPOLYMERS
ELECTRON TRANSFER
PHOTOSENSITIVITY
SYNTHESIS
FLUORESCENCE SPECTROSCOPY
PHENANTHRENE
AROMATICS
CONDENSED AROMATICS
EMISSION SPECTROSCOPY
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
SENSITIVITY
SPECTROSCOPY
400201* - Chemical & Physicochemical Properties
400500 - Photochemistry
400102 - Chemical & Spectral Procedures