文献类型：期刊文献

英文题名：Synthesis and Characterization of a New Triphenylamine-Substituted PFO/PPV Copolymer

作者：Gu, Lingling[1];Bai, Jinrui[1];Chen, Yu[1];Lin, Ying[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2009

卷号：41

期号：10

起止页码：866

外文期刊名：POLYMER JOURNAL

收录：;EI(收录号：20100112611357);WOS:【SCI-EXPANDED(收录号:WOS:000272518900011)】；

基金：We are grateful for the financial support of National Natural Science Foundation of China (20676034, 20876046), Ministry of Education of China (309013), Shanghai Municipal Educational Commission for the Shuguang fellowship (08GG10) and Shanghai Eastern Scholarship, respectively.

语种：英文

外文关键词：Polyfluorene; Triphenylamine Functionality; Heck-Coupling Reaction

摘要：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 tune 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.