Effect of Conjugation Length on Intrachain Chromophore−Chromophore Interaction in Silylene-Spaced Divinyloligoarene Copolymers

A range of silylene-spaced divinyloligoarene alternating copolymer 3 has been synthesized regioregularly by rhodium-catalyzed hydrosilylation of bis(alkynes) 5 with bis(silanes) 6. Monomeric reference compounds 4 having similar chromophore components were also prepared for comparison. The silylene m...

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Bibliographic Details
Published in:Macromolecules 2005-02, Vol.38 (4), p.1442-1446
Main Authors: Cheng, Yen-Ju, Basu, Sourav, Luo, Shr-Jie, Luh, Tien-Yau
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Properties and characterization
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Summary:A range of silylene-spaced divinyloligoarene alternating copolymer 3 has been synthesized regioregularly by rhodium-catalyzed hydrosilylation of bis(alkynes) 5 with bis(silanes) 6. Monomeric reference compounds 4 having similar chromophore components were also prepared for comparison. The silylene moieties serve as insulating spacers between chromophores. Intrachain interaction appears to be negligible due to the localization of exciton in these conjugated chromophores, resulting in the emission that closely resembles that of the parent chromophore.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma047713c