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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)
2013
发表期刊POLYMER COMPOSITES
卷号34期号:7页码:1051-1060
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
学科领域Materials Science; Polymer Science
DOI10.1002/pc.22512
收录类别SCI
WOS记录号WOS:000320400800005
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224102
专题多学科研究中心
核技术应用研究中心
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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.
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