Regular Article

Polymer Journal (2009) 41, 866–871; doi:10.1295/polymj.PJ2009100

Synthesis and Characterization of a New Triphenylamine-Substituted PFO/PPV Copolymer

Polymer Containing Triphenylamine

Lingling Gu1, Jinrui Bai1, Yu Chen1 and Ying Lin1

1Key Lab for Advanced Materials, Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People's Republic of China

Correspondence: Yu, Chen, Fax: +86-21-64252485, E-mail: advmaterials@yahoo.com

Received 22 April 2009; Accepted 2 July 2009; Published online 19 August 2009.

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Abstract

The spiro-type bulky architecture in the polymer is intriguing since it can suppress the interchain interactions and enhance the photoluminescence efficiency. A new triphenylamine-substituted PFO/PPV alternating copolymer was synthesized by using a typical Heck-coupling reaction. This highly soluble polymer exhibits strong photoluminescence with maximum emission peaks centered at 417 and 441 nm in THF; 425 and 460 nm in benzonitrile. In deoxygenated dry benzonitrile, the fluorescence time profile of copolymer exhibited a bi-exponential decay with lifetime of 0.12 ns (98%) and 1.13 ns (2%). Upon excitation with nanosecond laser pulse at 355 nm, the transient absorption band at 610 nm was observed.

Keywords:

Polyfluorene, Triphenylamine Functionality, Heck-Coupling Reaction

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