Ferroelectricity and molecular dynamics of poly(vinylidenefluoride-trifluoroethylene) nanoparticles

Martínez-Tong, Daniel E.; Soccio, Michelina; Sanz, Alejandro; García, Carlos Tejerizo; Ezquerra, Tiberio A.; Nogales, Aurora

doi:10.1016/j.polymer.2014.11.040

Cited by 8 publications

(8 citation statements)

References 43 publications

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“…In addition, peaks marked with * are also reported to be reflections, due to the crystalline ferroelectric phase [ 62 ]. These results are in line with diffractograms from other P(VDF-TrFE) nanostructures [ 22 , 63 ].…”

Section: Resultssupporting

confidence: 89%

“…These inks are generally formed by a dispersion of polymers in water [ 19 , 20 ], with the dispersed part inherently nanostructured. In most cases, inks are composed of water-dispersed polymer nanospheres with diameters ranging between 50 and 500 nm [ 21 , 22 ]. These polymeric nanoparticles and their dispersions have applications in many scientific fields including photonic systems [ 4 ], adhesives [ 23 ], as well as biomedical applications such as targeting [ 24 ], molecular imaging [ 25 ], and drug delivery activated by external stimuli [ 26 , 27 ] and organic electronics [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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“…Different methods for preparing polymer nanoparticles have been proposed [11][12][13]. Insitu polymerization can be carried out so that from a monomer it is possible to obtain a nanostructured polymer in the form of a particle [12].…”

Section: Introductionmentioning

confidence: 99%

“…Insitu polymerization can be carried out so that from a monomer it is possible to obtain a nanostructured polymer in the form of a particle [12]. A different approach consists of the use of a previously synthesized polymer in solution and the subsequent processing of the material to generate the nanostructures [4,13,14].…”

Section: Introductionmentioning

confidence: 99%

Formation of polymer nanoparticles by UV pulsed laser ablation of poly (bisphenol A carbonate) in liquid environment

Martínez-Tong

Sanz

Ezquerra

et al. 2017

Applied Surface Science

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Suspensions of poly(bisphenol A carbonate) (PBAC) nanoparticles of varying size and shape have been produced by ablation of a PBAC target in liquid media with the fourth harmonic of a Q-switched Nd:YAG laser (wavelength 266 nm, full width at half maximum 4 ns, repetition rate 10 Hz). The polymer target was placed at the bottom of a rotating glass vessel filled with around a 10 mm column of liquid. Laser ablation in water leads to spherical nanoparticles with diameters of several tens of nanometers for fluences close to 1 J/cm 2 . Ablation at lower fluences, around 0.1 J/cm 2 , results in the production of nanoparticles of smaller diameters and also of non-spherical nanoparticles. Additional irradiations at the fluence of 0.1 J/cm 2 were performed in several liquid media with different properties, in terms of density, viscosity, thermal conductivity, boiling temperature, isothermal compressibility and polarity. The different size distributions observed were related to the thermal conductivity of the systems, while their viscosity seems to be responsible for the development of nanostructures with different morphologies.

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“…However, the neat PVDF did not show this signature. Martínez-Tong et al [81] also observed a continuous transition in the dielectric relaxation map of a PVDF copolymer with trifluoroethylene (PVDF-TrFE), with a VDF mol content of 76%. In that work, the authors observed a crossover from the segmental relaxation to the ferroelectric-paraelectric relaxation of the polymer.…”

Section: Dielectric Spectroscopy Studies In Pvdf and Its Copolymersmentioning

confidence: 93%

Phase Transitions in Poly(vinylidene fluoride)/Polymethylene-Based Diblock Copolymers and Blends

et al. 2021

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The crystallization and morphology of two linear diblock copolymers based on polymethylene (PM) and poly(vinylidene fluoride) (PVDF) with compositions PM23-b-PVDF77 and PM38-b-PVDF62 (where the subscripts indicate the relative compositions in wt%) were compared with blends of neat components with identical compositions. The samples were studied by SAXS (Small Angle X-ray Scattering), WAXS (Wide Angle X-ray Scattering), PLOM (Polarized Light Optical Microscopy), TEM (Transmission Electron Microscopy), DSC (Differential Scanning Calorimetry), BDS (broadband dielectric spectroscopy), and FTIR (Fourier Transform Infrared Spectroscopy). The results showed that the blends are immiscible, while the diblock copolymers are miscible in the melt state (or very weakly segregated). The PVDF component crystallization was studied in detail. It was found that the polymorphic structure of PVDF was a strong function of its environment. The number of polymorphs and their amount depended on whether it was on its own as a homopolymer, as a block component in the diblock copolymers or as an immiscible phase in the blends. The cooling rate in non-isothermal crystallization or the crystallization temperature in isothermal tests also induced different polymorphic compositions in the PVDF crystals. As a result, we were able to produce samples with exclusive ferroelectric phases at specific preparation conditions, while others with mixtures of paraelectric and ferroelectric phases.

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Ferroelectricity and molecular dynamics of poly(vinylidenefluoride-trifluoroethylene) nanoparticles

Cited by 8 publications

References 43 publications

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

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

Formation of polymer nanoparticles by UV pulsed laser ablation of poly (bisphenol A carbonate) in liquid environment

Phase Transitions in Poly(vinylidene fluoride)/Polymethylene-Based Diblock Copolymers and Blends

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