Electrical properties of flexible graphene reinforced polyimide composites
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45372
Abstract: The electrical properties of polyimide and the composite at different volumes fractions were studied in the frequency range 200 Hz–20 kHz and in the temperature range 30–200 °C. Increasing the volume fraction of graphene up to… read more here.
Keywords: polyimide composites; properties flexible; graphene; dielectric constant ... See more keywords
Reduction of dielectric constant by nanovoids formed through chemical treatment on silica crosslinked polyimide and its effect on properties
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45982
Abstract: In this study, 2,7-diamino-9-fluorenol (DAF) has been introduced to bond silica to the main chain of the polyimide (PI) copolymer. DAF contains a hydroxyl group that could covalently bond with silica particles. 4,4′-(Hexafluoroisopropylidene)diphthalic anhydride (6FDA)… read more here.
Keywords: treatment; reduction dielectric; silica; dielectric constant ... See more keywords
The Effect of the Dielectric Constant and Ion Mobility in Light-Emitting Electrochemical Cells.
Sign Up to like & getrecommendations! Published in 2018 at "ChemPlusChem"
DOI: 10.1002/cplu.201700500
Abstract: Light-emitting electrochemical cells (LEECs) are a promising low-cost option for display and solid-state lighting. In these devices, the interplay of mobile ions, electrons, and holes makes for rich physics that can be leveraged for high… read more here.
Keywords: electrochemical cells; dielectric constant; effect; light emitting ... See more keywords
All-Organic Hyper-Crosslinked Polymer/Polyimide Composite Films with Ultralow High-Frequency Dielectric Constant.
Sign Up to like & getrecommendations! Published in 2023 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200956
Abstract: The ever-increasing demand for high-speed communication at high frequency promotes the rapid development of low dielectric polymer films. Aromatic polyimide (PI) has been widely used as the main dielectrics in the flexible circuit board due… read more here.
Keywords: high frequency; frequency; hyper crosslinked; composite films ... See more keywords
Polybutadiene Dielectric Elastomers with high Dielectric Constant and Ultralow Dielectric loss via Tuning Grafted Polar Groups.
Sign Up to like & getrecommendations! Published in 2023 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200971
Abstract: This study describes an easy and effective process for preparing a homogeneous polybutadiene (PB) dielectric elastomer with improved actuated strain by utilizing a photochemical thiol-ene click reaction. The carboxyl groups and various ester groups are… read more here.
Keywords: dielectric loss; polybutadiene dielectric; dielectric constant; ester groups ... See more keywords
Displacement current distribution on a high dielectric constant helmet and its effect on RF field at 10.5 T (447 MHz).
Sign Up to like & getrecommendations! Published in 2021 at "Magnetic resonance in medicine"
DOI: 10.1002/mrm.28923
Abstract: PURPOSE Investigating the designs and effects of high dielectric constant (HDC) materials in the shape of a conformal helmet on the enhancement of RF field and reduction of specific absorption rate at 10.5 T for… read more here.
Keywords: high dielectric; field; human head; dielectric constant ... See more keywords
High Dielectric Transparent Film Tailored by Acceptor and Donor Codoping.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202107168
Abstract: High dielectric constant materials are of particular current interests as indispensable components in transistors, capacitors, etc. In this context, there are emerging trends to exploit defect engineering in dielectric ceramics for enhancing the performance. However,… read more here.
Keywords: acceptor; spectroscopy; donor; dielectric constant ... See more keywords
Unraveling the Role of Non-Fullerene Acceptor with High Dielectric Constant in Organic Solar Cells.
Sign Up to like & getrecommendations! Published in 2023 at "Small"
DOI: 10.1002/smll.202302314
Abstract: Increasing the relative dielectric constant is a constant pursuit of organic semiconductors, but it often leads to multiple changes in device characteristics, hindering the establishment of a reliable relationship between dielectric constant and photovoltaic performance.… read more here.
Keywords: organic solar; dielectric; solar cells; non fullerene ... See more keywords
Preparation of cellulose insulating paper of low dielectric constant by OAPS grafting
Sign Up to like & getrecommendations! Published in 2019 at "Cellulose"
DOI: 10.1007/s10570-019-02570-2
Abstract: This study aims to decrease the dielectric constant of cellulose insulating paper by octa(aminophenyl)silsesquioxane (OAPS) grafting. OAPS was grafted onto the primary hydroxyl group of cellulose molecules via amino groups and epichlorohydrin. The dielectric constant… read more here.
Keywords: oaps grafting; cellulose insulating; paper; dielectric constant ... See more keywords
Addendum to “Dielectric Constant of Mixtures of Carbon dioxide and n-Dodecane Between 283 K and 343 K, Int. J. Thermophysics 41, 26, 2020”: Complementary Results for Mixtures of Carbon dioxide and Squalane Between 283 K and 343 K
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Thermophysics"
DOI: 10.1007/s10765-020-02640-9
Abstract: We present additional data on the dielectric constant (relative permittivity) and liquid density of mixtures of carbon dioxide (CO2) and squalane (2,6,10,15,19,23-hexamethyltetracosane) for temperatures between 283 K and 343 K. The data were obtained in the apparatus… read more here.
Keywords: dielectric constant; carbon dioxide; 283 343; mixtures carbon ... See more keywords
Synthesis and characterisation of a high dielectric constant and ac-conducting PANI/[Co(NH3)3(C4H4N2)3]Cl3 nanocomposite
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-017-7778-5
Abstract: In this study we have synthesised polyaniline/[Co(NH3)3(C4H4N2)3]Cl3 nanocomposite by in-situ chemical polymerisation method in non-aqueous dimethyl sulphoxide medium. The filler photoadduct was synthesised by irradiating aqueous solution mixture of hexaminecobalt(III) chloride metal complex and pyrazine,… read more here.
Keywords: cl3 nanocomposite; dielectric constant; photoadduct; nh3 c4h4n2 ... See more keywords