Poly(arylene ether ketone)s with low dielectric constants derived from polyhedral oligomeric silsesquioxane and difluorinated aromatic ketones

2017 ◽  
Vol 135 (15) ◽  
pp. 46084 ◽  
Author(s):  
Jinmeng Hao ◽  
Yanfeng Wei ◽  
Xuesong Li ◽  
Jianxin Mu
Keyword(s):  
Polyhedral Oligomeric Silsesquioxane ◽  
Dielectric Constants ◽  
Aromatic Ketones ◽  
Low Dielectric ◽  
Arylene Ether ◽  
Ether Ketone ◽  
Oligomeric Silsesquioxane

Polyhedral Oligomeric Silsesquioxane (POSS)-Modified Thermoplastic and Thermosetting Nanocomposites: A Review

2008 ◽  
Vol 16 (8) ◽  
pp. 483-500 ◽  
Author(s):  
Jianqing Zhao ◽  
Yi Fu ◽  
Shumei Liu
Keyword(s):  
Processing Condition ◽  
Polyhedral Oligomeric Silsesquioxane ◽  
Physical And Mechanical Properties ◽  
Molecular Geometry ◽  
Surface Hydrophobicity ◽  
Dielectric Constants ◽  
Great Promise ◽  
Wide Range ◽  
Oligomeric Silsesquioxane ◽  
Mechanical Strengths

Polyhedral oligomeric silsesquioxane (POSS) nanoparticles have been successfully incorporated into thermoplastic and thermoset polymers via copolymerization, grafting, blending, surface bonding, or other transformations. A great promise in the development of a wide range of POSS-containing nanocomposites with diversely improved properties has been displayed. Thermal properties, viscoelastic properties, mechanical strengths, dielectric constants, surface hydrophobicity and flame-retardancy of the nanocomposites are easily varied to target properties by adjusting POSS structure, crosslink density, processing condition, etc. Investigations on the effects of POSS molecular geometry, composition, and concentration on physical and mechanical properties of resultant POSS-modified thermoplastic and thermosetting nanocomposites have been carefully reviewed in this article.

Poly(aryl ether ketone/sulfone)s containing ortho-methyl and pendant trifluoromethyl-substituted phenyl groups: Synthesis and properties

2012 ◽  
Vol 24 (8) ◽  
pp. 692-701 ◽  
Author(s):  
Chengyuan Shang ◽  
Xiaojuan Zhao ◽  
Junwei Li ◽  
Jingang Liu ◽  
Wei Huang
Keyword(s):  
Dielectric Constants ◽  
Polymer Chains ◽  
Light Transmittance ◽  
Cutoff Wavelength ◽  
Aryl Ether ◽  
Good Thermal Stability ◽  
Low Dielectric ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Good Transparency

Two novel bisphenols, 1,1-bis(4′-hydroxy-3′,5′-dimethylphenyl)-1-(3′′-trifluoromethylphenyl)-2,2,2-trifluoroethane (4M6FDO) and 1,1-bis(4′-hydroxy-3′,5′-dimethylphenyl)-1-[3′′,5′′-bis(trifluoromethyl)phenyl]-2,2,2-trifluoroethane (4M9FDO), with methyl groups ortho-substituted to the phenol groups, bulky trifluoromethyl-substituted phenyl groups and trifluoromethyl groups in the structure, were synthesized and characterized. The bisphenols were polymerized with 4,4′-difluorobenzophenone and bis(4-fluorophenyl) sulfone, respectively, via a aromatic nucleophilic substitution polycondensation to afford four poly(aryl ether ketone/sulfone)s (PAEKs/PAESs) with the inherent viscosities of 0.32–0.52 dL g−1. The ortho-methyl and pendant trifluoromethyl-substituted phenyl groups endow the polymers with good solubility, the rigidity of the polymer chains increase the glass transition ( Tg) of the polymers to 197–235 °C. Flexible and tough films cast from N,N-dimethylacetamide showed good thermal stability, low dielectric constants of 2.67–2.73 and low water uptakes of 0.21–0.40%. Moreover, the polymers showed good transparency with light transmittance at 450 nm as high as 96% and cutoff wavelength as low as 285 nm. The PAEKs also exhibited low light-absorption at the optocommunication wavelengths of 1310 and 1550 nm.

Naphthalene-containing poly(arylene ether ketone) with low dielectric constant

2018 ◽  
Vol 135 (44) ◽  
pp. 46857 ◽  
Author(s):  
Yurong Zhang ◽  
Hao Jiang ◽  
Jie Liu ◽  
Chengji Zhao ◽  
Hui Na
Keyword(s):  
Dielectric Constant ◽  
Low Dielectric Constant ◽  
Low Dielectric ◽  
Arylene Ether ◽  
Ether Ketone

Synthesis and characterization of novel adamantane-based copoly(aryl ether ketone)s with low dielectric constants

2013 ◽  
Vol 63 (2) ◽  
pp. 333-337 ◽  
Author(s):  
Zhi Geng ◽  
Yaning Lu ◽  
Shuling Zhang ◽  
Xu Jiang ◽  
Pengfei Huo ◽  
...  
Keyword(s):  
Dielectric Constants ◽  
Synthesis And Characterization ◽  
Aryl Ether ◽  
Low Dielectric ◽  
Aryl Ether Ketone ◽  
Ether Ketone
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