Variable Polymer Properties Driven by Substituent Groups: Investigation on a Trifl uorovinylether-Functionalized Polyfluorene at the C-9 Position

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	Variable Polymer Properties Driven by Substituent Groups: Investigation on a Trifl uorovinylether-Functionalized Polyfluorene at the C-9 Position
	Wang JJ(王佳佳); Li K(李凯); Yuan C(袁超); Jin KK(金凯凯); Tian S(田松); Sun J(孙晶); Fang Q(房强)
刊名	Macromol. Chem. Phys.
	2015
卷号	216 期号:7 页码:742-748
其他题名	取代基诱导的聚合物性能变化: C-9位含有三氟乙烯基取代基的聚芴的研究
通讯作者	房强
英文摘要	A new polyfluorene PF-TFVE with functional trifluorovinylether (-OCF=CF2) groups at the C-9 position is reported. When heated to high temperatures, the polymer converts to a cross-linked network (PF-PFCB), which exhibits much lower dielectric constant and dissipation factor at high frequency than a traditional octyl substituted polyfluorene (PFO) (cf., PF-PFCB: 2.42 and 0.048; PFO: 3.80 and 0.22 @ 30 MHz). The electronic spectra of PF-PFCB indicate that it exhibits weaker UV-vis absorption and photoluminescent emission than PFO in the solid state, suggesting that the big substituent groups and the cross-linked networks in PF-PFCB hinder the conjugation between two fluorene units. This is the first example revealing that dielectric properties of polyfluorenes can be varied by different substituent groups at the C-9 position. These results indicate that polyfluorenes can not only be considered as semiconductors, but also as insulators.
学科主题	高分子化学
收录类别	SCI
原文出处	http://dx.doi.org/10.1002/macp.201400597
语种	英语
WOS记录号	WOS:000352576100005
内容类型	期刊论文
源URL	[http://ir.sioc.ac.cn/handle/331003/39841]
专题	上海有机化学研究所_高分子材料研究室
作者单位	中科院上海有机化学研究所, 有机功能分子合成与组装化学重点实验室
推荐引用方式 GB/T 7714	Wang JJ,Li K,Yuan C,et al. Variable Polymer Properties Driven by Substituent Groups: Investigation on a Trifl uorovinylether-Functionalized Polyfluorene at the C-9 Position[J]. Macromol. Chem. Phys.,2015,216(7):742-748.
APA	王佳佳.,李凯.,袁超.,金凯凯.,田松.,...&房强.(2015).Variable Polymer Properties Driven by Substituent Groups: Investigation on a Trifl uorovinylether-Functionalized Polyfluorene at the C-9 Position.Macromol. Chem. Phys.,216(7),742-748.
MLA	王佳佳,et al."Variable Polymer Properties Driven by Substituent Groups: Investigation on a Trifl uorovinylether-Functionalized Polyfluorene at the C-9 Position".Macromol. Chem. Phys. 216.7(2015):742-748.