Synergistic interfacial effect of polymer stabilized graphene via non-covalent functionalization in poly(vinylidene fluoride) matrix yielding superior mechanical and electronic properties

Polymer ◽  
2016 ◽  
Vol 88 ◽  
pp. 79-93 ◽  
Author(s):  
Nirmal Maity ◽  
Amit Mandal ◽  
Arun K. Nandi
Keyword(s):  
Electronic Properties ◽  
Vinylidene Fluoride ◽  
Interfacial Effect ◽  
Covalent Functionalization ◽  
Poly Vinylidene Fluoride ◽  
Matrix Yielding ◽  
Polymer Stabilized

Electronic properties of poly(vinylidene fluoride): a density functional theory study

2009 ◽  
Vol 35 (6) ◽  
pp. 477-482 ◽  
Author(s):  
E. Ortiz ◽  
A. Cuán ◽  
C. Badillo ◽  
C.M. Cortés-Romero ◽  
Q. Wang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Properties ◽  
Density Functional ◽  
Vinylidene Fluoride ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Poly Vinylidene Fluoride

Poly(vinylidene fluoride)/poly(3-methylthiophene) core–shell nanocomposites with improved structural and electronic properties of the conducting polymer component

2018 ◽  
Vol 20 (9) ◽  
pp. 6450-6461 ◽  
Author(s):  
Nikolay A. Ogurtsov ◽  
Valery N. Bliznyuk ◽  
Andrii V. Mamykin ◽  
Oleksandr L. Kukla ◽  
Yuri P. Piryatinski ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Conducting Polymer ◽  
Vinylidene Fluoride ◽  
Sensory Properties ◽  
Core Shell ◽  
Structural And Electronic Properties ◽  
Poly Vinylidene Fluoride ◽  
Polymer Component

Significant improvements in structural, electronic and sensory properties of P3MT have been achieved due to its synthesis in the presence of submicron PVDF particles.

Effects of Annealing on the Optical and Electronic Properties of Poly (vinylidene fluoride-trifluoroethylene) Copolymer Thin Films

2009 ◽  
Vol 79-82 ◽  
pp. 919-922 ◽  
Author(s):  
Yu Xiang Li ◽  
Yan Wang ◽  
Qing Pu Wang ◽  
Chun Lei Ma
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Thermal Annealing ◽  
Annealing Time ◽  
Vinylidene Fluoride ◽  
Oxide Semiconductor ◽  
K Value ◽  
Spin Casting ◽  
Optical And Electronic Properties ◽  
Poly Vinylidene Fluoride

Thin films of vinylidene fluoride with trifluoroethylene [P(VDF-TrFE)] copolymer have been deposited onto bare Si and SiO2 by spin casting from methylethylketone solutions. The structures and optical and electronic properties for P(VDF-TrFE) films after vacuum and forming gas annealing were studied. The degree of structural order and the crystallinity determined by X-ray diffraction were increased with the thermal annealing time. Ellipsometry spectroscopy were employed to investigate the changes in the thickness, refractive indices n, and the anisotropic properties. The results reflected that the n was increased with the thermal annealing time and temperature, and the anisotropy of the annealed films was strengthened with the annealing time and temperature. Metal-polymer-(oxide)-semiconductor capacitors were used to measure the static dielectric constant K and interfacial electronic properties of P(VDF-TrFE) on Si which the K increase with film thickness and thermal annealing. The interface at Al-P(VDF-TrFE) and/or P(VDF-TrFE)-Si affect the K value which is sensitive for films thinner than 120 nm. The Si-P(VDF-TrFE) interface quality determined using capacitance-voltage and current-voltage measurementswas found to be improved after forming gas annealed.

scholarly journals Optical Properties of Composites Based on Poly (o-phenylenediamine), Poly (Vinylenefluoride) and Double-Wall Carbon Nanotubes

2021 ◽  
Vol 22 (15) ◽  
pp. 8260
Author(s):  
Mihaela Baibarac ◽  
Monica Daescu ◽  
Elena Matei ◽  
Daniela Nastac ◽  
Oana Cramariuc
Keyword(s):  
Carbon Nanotubes ◽  
Optical Properties ◽  
Vinylidene Fluoride ◽  
Polymerization Reaction ◽  
Covalent Functionalization ◽  
Quenching Process ◽  
Poly Vinylidene Fluoride ◽  
Double Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Pl Quenching

In this work, synthesis and optical properties of a new composite based on poly(o-phenylenediamine) (POPD) fiber like structures, poly(vinylidene fluoride) (PVDF) spheres and double-walled carbon nanotubes (DWNTs) are reported. As increasing the PVDF weight in the mixture of the chemical polymerization reaction of o-phenylenediamine, the presence of the PVDF spheres onto the POPD fibers surface is highlighted by scanning electron microscopy (SEM). The down-shift of the Raman line from 1421 cm−1 to 1415 cm−1 proves the covalent functionalization of DWNTs with the POPD-PVDF blends. The changes in the absorbance of the IR bands peaked around 840, 881, 1240 and 1402 cm−1 indicate hindrance steric effects induced of DWNTs to the POPD fiber like structures and the PVDF spheres, as a consequence of the functionalization process of carbon nanotubes with macromolecular compounds. The presence of the PVDF spheres onto the POPD fiber like structures surface induces a POPD photoluminescence (PL) quenching process. An additional PL quenching process of the POPD-PVDF blends is reported to be induced in the presence of DWNTs. The studies of anisotropic PL highlight a change of the angle of the binding of the PVDF spheres onto the POPD fiber like structures surface from 50.2° to 38° when the carbon nanotubes concentration increases in the POPD-PVDF/DWNTs composites mass up to 2 wt.%.

Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains

2020 ◽  
Vol 91 (3) ◽  
pp. 31301
Author(s):  
Nabil Chakhchaoui ◽  
Rida Farhan ◽  
Meriem Boutaldat ◽  
Marwane Rouway ◽  
Adil Eddiai ◽  
...  
Keyword(s):  
High Efficiency ◽  
Vinylidene Fluoride ◽  
Research Work ◽  
Research Area ◽  
Interfacial Interaction ◽  
Tetraethyl Orthosilicate ◽  
Poly Vinylidene Fluoride ◽  
Carbon Nanofillers ◽  
The Impact ◽  
Advanced Applications

Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.

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