Synthesis and characterization of polyfluorene-based photoelectric materials: the effect of coil segment on the spectral stability

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	Synthesis and characterization of polyfluorene-based photoelectric materials: the effect of coil segment on the spectral stability
	Li, Jin-Jin ; Wang, Jian-Jian ; Zhou, Yin-Ning ; Luo, Zheng-Hong ; Luo ZH(罗正鸿)
刊名	http://dx.doi.org/10.1039/c4ra01616e
	2014
关键词	ROD-COIL CONJUGATED POLYMERS BLOCK-COPOLYMERS SURFACE-PROPERTIES GREEN EMISSION SIDE-CHAIN PHOTOPHYSICAL PROPERTIES DIBLOCK COPOLYMERS TERFLUORENE UNITS
英文摘要	National Ministry of Science and Technology of China [2012CB21500402]; National Natural Science Foundation of China [21076171, 21276213]; The origin of the low-energy emission of fluorene-based rod-coil block copolymers still remains controversial. In this work, a series of polyfluorene-based rod-coil block copolymers having different coil segments, i.e., poly[2,7-(9,9-dihexylfluorene)]-block-poly(2,2,3,3,4,4,4-heptafluorobutyl methacrylate, (PF-b-PHFBMA), PF-b-poly(butylmethacrylate) (PF-b-PBMA), PF-b-poly(2-hydroxyethyl methacrylate) (PF-b-PHEMA) and PF-b-poly(acrylic acid) (PF-b-PAA), were synthesized using the ATRP technique. The optical and surface properties and thermal behaviors of these copolymers were systematically investigated. In particular, different thermal treatment conditions, including annealing temperature, annealing time and annealing atmosphere were introduced to study the effect of coil segment on the copolymer spectral stability. The incorporation of PBMA, PHEMA and PAA segments to PF could indeed improve the copolymer spectral stability, while the PHFBMA block brought undesirable low-energy emission. In addition, water contact angle (WCA) measurements of the copolymer films before and after annealing further demonstrated that the low-energy emission of PF-based rod-coil block copolymers was attributed to the molecular aggregation rather than the formation of fluorenone defects.
语种	英语
出版者	ROYAL SOC CHEMISTRY
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89441]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Li, Jin-Jin,Wang, Jian-Jian,Zhou, Yin-Ning,et al. Synthesis and characterization of polyfluorene-based photoelectric materials: the effect of coil segment on the spectral stability[J]. http://dx.doi.org/10.1039/c4ra01616e,2014.
APA	Li, Jin-Jin,Wang, Jian-Jian,Zhou, Yin-Ning,Luo, Zheng-Hong,&罗正鸿.(2014).Synthesis and characterization of polyfluorene-based photoelectric materials: the effect of coil segment on the spectral stability.http://dx.doi.org/10.1039/c4ra01616e.
MLA	Li, Jin-Jin,et al."Synthesis and characterization of polyfluorene-based photoelectric materials: the effect of coil segment on the spectral stability".http://dx.doi.org/10.1039/c4ra01616e (2014).