標題: Synthesis and characterization of an efficiently fluorescent poly(phenylenevinylene) possessing pendant dendritic phenyl groups
作者: Dinakaran, K
Hsiao, SM
Chou, CH
Shu, SL
Wei, KH
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 13-Dec-2005
摘要: We have synthesized a thermally stable and high molecular weight fluorescent poly(phenylenevinylene) (PPV) incorporating side-chain-tethered dendritic phenyl groups (DENPPV) through Gilch route; this DENPPV has a low abundance of tolane-bisbenzyl defects. Intramolecular energy transfer from the dendritic phenyl side group to the PPV backbone was evidenced from UV-vis and photoluminescence spectra of the DENPPV polymer and its model compound. Copolymers of DENPPV with 2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene (MEHPPV) display excellent photoluminescence both in solution and in the solid state; the highest quantum yield we observed was 82%. The electroluminescence of the copolymer MEHPPV/DENPPV (molar ratio: 25/75) was 70% higher than that of MEHPPV (0.12 lm/W vs 0.07).
URI: http://dx.doi.org/10.1021/ma050252q
http://hdl.handle.net/11536/12963
ISSN: 0024-9297
DOI: 10.1021/ma050252q
期刊: MACROMOLECULES
Volume: 38
Issue: 25
起始頁: 10429
結束頁: 10435
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