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. |
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