Towards new strategies for the synthesis of functional vinylidene fluoride-based copolymers with tunable wettability

2016 ◽  
Vol 7 (24) ◽  
pp. 4004-4015 ◽  
Author(s):  
Sanjib Banerjee ◽  
Thibaut Soulestin ◽  
Yogesh Patil ◽  
Vincent Ladmiral ◽  
Bruno Ameduri
Keyword(s):  
Oil Recovery ◽  
Water Purification ◽  
Potential Application ◽  
Vinylidene Fluoride ◽  
Water Based ◽  
Poly Vinylidene Fluoride ◽  
New Strategies ◽  
Fluorinated Solvents

–COOH functionalized poly(vinylidene fluoride) prepared using water-based non-fluorinated solvents displays tunable wettability suitable for potential application in coating, oil recovery and water purification.

scholarly journals Recent Progress in the Membrane Distillation and Impact of Track-Etched Membranes

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2520
Author(s):  
Arman B. Yeszhanov ◽  
Ilya V. Korolkov ◽  
Saule S. Dosmagambetova ◽  
Maxim V. Zdorovets ◽  
Olgun Güven
Keyword(s):  
Water Purification ◽  
Vinylidene Fluoride ◽  
Liquid Radioactive Waste ◽  
Theoretical Models ◽  
Membrane Distillation ◽  
Narrow Pore Size Distribution ◽  
Poly Ethylene Terephthalate ◽  
Poly Vinylidene Fluoride ◽  
Poly Ethylene ◽  
Purification Of Water

Membrane distillation (MD) is a rapidly developing field of research and finds applications in desalination of water, purification from nonvolatile substances, and concentration of various solutions. This review presents data from recent studies on the MD process, MD configuration, the type of membranes and membrane hydrophobization. Particular importance has been placed on the methods of hydrophobization and the use of track-etched membranes (TeMs) in the MD process. Hydrophobic TeMs based on poly(ethylene terephthalate) (PET), poly(vinylidene fluoride) (PVDF) and polycarbonate (PC) have been applied in the purification of water from salts and pesticides, as well as in the concentration of low-level liquid radioactive waste (LLLRW). Such membranes are characterized by a narrow pore size distribution, precise values of the number of pores per unit area and narrow thickness. These properties of membranes allow them to be used for more accurate water purification and as model membranes used to test theoretical models (for instance LEP prediction).

Kinetic and mechanistic aspects of the iodine transfer copolymerization of vinylidene fluoride with 2,3,3,3-tetrafluoro-1-propene and functionalization into ω-hydroxy fluorinated copolymers

2016 ◽  
Vol 7 (39) ◽  
pp. 6099-6109 ◽  
Author(s):  
Sanjib Banerjee ◽  
Saad Zaghloul ◽  
Ali Alaaeddine ◽  
Bruno Ameduri
Keyword(s):  
Vinylidene Fluoride ◽  
Water Based ◽  
Poly Vinylidene Fluoride ◽  
Iodine Transfer ◽  
Fluorinated Copolymers

ω-Hydroxy functionalized poly(vinylidene fluoride) prepared in a water-based non-fluorinated solvent by iodine transfer copolymerization VDF and 1234yf.

Self-floating Bi2S3/poly (vinylidene fluoride) composites on polyurethane sponges for efficient solar water purification

2019 ◽  
Vol 203 ◽  
pp. 110127 ◽  
Author(s):  
Haiyan Cheng ◽  
Xinghang Liu ◽  
Lixing Zhang ◽  
Baofei Hou ◽  
Fang Yu ◽  
...  
Keyword(s):  
Water Purification ◽  
Vinylidene Fluoride ◽  
Solar Water ◽  
Poly Vinylidene Fluoride

scholarly journals Preparation, Physical Properties, and Applications of Water-Based Functional Polymer Inks

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1419
Author(s):  
Edgar Gutiérrez-Fernández ◽  
Jing Cui ◽  
Daniel E. Martínez-Tong ◽  
Aurora Nogales
Keyword(s):  
Physical Properties ◽  
Polymer Coating ◽  
Vinylidene Fluoride ◽  
Semiconducting Polymer ◽  
Functional Polymer ◽  
Ferroelectric Polymer ◽  
Solvent Displacement ◽  
Water Based ◽  
Poly Vinylidene Fluoride

In this study, water-based functional polymer inks are prepared using different solvent displacement methods, in particular, polymer functional inks based on semiconducting polymer poly(3-hexylthiophene) and the ferroelectric polymer poly(vinylidene fluoride) and its copolymers with trifluoroethylene. The nanoparticles that are included in the inks are prepared by miniemulsion, as well as flash and dialysis nanoprecipitation techniques and we discuss the properties of the inks obtained by each technique. Finally, an example of the functionality of a semiconducting/ferroelectric polymer coating prepared from water-based inks is presented.

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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