- 作者: 陳明,湯華燊
- 作者服務機構: School of Chemistry, The University of Melbourne, Victoria 3010, Australia
- 中文摘要: Reversible addition-fragmentation chain transfer (RAFT) polymerization has been used to synthesize a star-shaped light-harvesting polymer comprising six diblock copolymer arms of styryl coumarin (St-Coumarin) and methyl acrylate (MA) surrounding a ruthenium (II) trisbipyridyl energy trap core. The efficiency of excitation energy transfer from the styryl coumarin units to the Ru(II) core is increased to 90% compared to 60% for the analogous star polymer without MA blocks. The enhanced excitation energy transfer efficiency arises from the role of the MA blocks in diminishing the competitive quenching of photoexcited St-coumarin chromophores by dithiobenzoyl polymer end groups present from the RAFT polymerization procedure.
- 英文摘要: --
- 中文關鍵字: Light-harvesting polymers; Luminescent polymers; Energy transfer; RAFT polymerization.
- 英文關鍵字: --