Dielectric and mechanical properties of diglycidyl ether of bisphenol a modified by a new fluoro-terminated hyperbranched poly(phenylene oxide)

	Dielectric and mechanical properties of diglycidyl ether of bisphenol a modified by a new fluoro-terminated hyperbranched poly(phenylene oxide)
	Luo, LJ; Meng, Y; Qiu, T; Li, ZX; Yang, J; Cao, XZ; Li, XY; Li ZX(李卓昕); Yang J(杨静); Cao XZ(曹兴忠)
刊名	POLYMER COMPOSITES
	2013
卷号	34 期号:7 页码:1051-1060
英文摘要	Diglycidyl ether of bisphenol A (DGEBA)/fluoro-terminated hyperbranched poly(phenylene oxide) (FHPPO) composites with improved mechanical and dielectric performances were prepared by blending a FHPPO with DGEBA. The low-polarity building blocks, abundant fluorinated terminal groups, and the inherent free volume brought by FHPPO efficiently lowered the dielectric constant and the dissipation factor. The free volumes of the cured DGEBA/FHPPO composites, which were quantified by positron annihilation lifetime spectroscopy, increased with the FHPPO loading. The moisture absorption of composites also decreased after the introduction of FHPPO due to the hydrophobicity of fluorinated substituents. Dynamic mechanical analysis tests and scanning electron morphology revealed that FHPPO phase separated from the composites during the curing process. The average diameter of dispersed FHPPO particles increased proportionally with the FHPPO loading. Composites with dispersed particle size of around 150 nm showed the best comprehensive mechanical performance. In addition, incorporation of FHPPO, which has lots of aromatic structures, into DGEBA also increased the thermal stabilities. POLYM. COMPOS., 34:1051-1060, 2013. (c) 2013 Society of Plastics Engineers
学科主题	Materials Science; Polymer Science
收录类别	SCI
WOS记录号	WOS:000320400800005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224102]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Luo, LJ,Meng, Y,Qiu, T,et al. Dielectric and mechanical properties of diglycidyl ether of bisphenol a modified by a new fluoro-terminated hyperbranched poly(phenylene oxide)[J]. POLYMER COMPOSITES,2013,34(7):1051-1060.
APA	Luo, LJ.,Meng, Y.,Qiu, T.,Li, ZX.,Yang, J.,...&曹兴忠.(2013).Dielectric and mechanical properties of diglycidyl ether of bisphenol a modified by a new fluoro-terminated hyperbranched poly(phenylene oxide).POLYMER COMPOSITES,34(7),1051-1060.
MLA	Luo, LJ,et al."Dielectric and mechanical properties of diglycidyl ether of bisphenol a modified by a new fluoro-terminated hyperbranched poly(phenylene oxide)".POLYMER COMPOSITES 34.7(2013):1051-1060.