Conducting polymer nanofibers with controlled diameters synthesized in hexagonal mesophases

Ghosh, Srabanti; Ramos, Laurence; Rémita, Samy; Dazzi, Alexandre; Deniset‐Besseau, Ariane; Beaunier, Patricia; Goubard, Fabrice; Aubert, Pierre-Henri; Remita, Hynd

doi:10.1039/c5nj00826c

Cited by 30 publications

(20 citation statements)

References 52 publications

(79 reference statements)

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“…Generally, S , S ′‐bis(α,α′‐dimethyl‐α″‐acetic acid)‐trithiocarbonate (BDMAT) has reduction potential value of −0.88 V versus Ag/AgCl (in acetonitrile) (Figure S5, Supporting Information). We prepared poly(1,4‐diphenylbutadiyne) nanofibers (PDPB‐NF) in nanoreactors of mesophases as shown in Figure A,B, and its reduction potential values can be easily tuned by polymerization degree 21b. For example, we prepared PDPB‐NFs with 4, 6 polymerization degree, which have reduction potential values of −1.23 V versus Ag/AgCl (in acetonitrile) (Figure S6, Supporting Information) and 1.16 V versus Ag/AgCl (in acetonitrile) (Figure S7, Supporting Information) as shown in Figure 1E.…”

Section: Figurementioning

confidence: 99%

Polymer Nanofibers Exhibiting Remarkable Activity in Driving the Living Polymerization under Visible Light and Reusability

et al. 2020

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Visible light‐driving syntheses have emerged as a powerful tool for organic synthesis and for the preparation of macromolecules under mild and environmentally benign conditions. However, precious but nonreusable photosensitizers or photocatalysts are often required to activate the reaction, limiting its practicality. Here, it is reported that poly(1,4‐diphenylbutadiyne) (PDPB) nanofibers exhibit remarkable activity in driving the living free radical polymerization under visible light. Moreover, PDPB nanofibers are very stable under irradiation of visible light and can be reused without appreciable loss of activity even after repeated cycling. The nanofiber will be a promising photocatalyst with excellent reusability and stability for the reactions driven by visible light.

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Section: Figurementioning

confidence: 99%

Polymer Nanofibers Exhibiting Remarkable Activity in Driving the Living Polymerization under Visible Light and Reusability

et al. 2020

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“…The signal amplitude is then Fourier transformed to be a function of the laser wavenumber and directly reflects the IR absorption characteristics of the material. As the resonance frequency is correlated well with the conventional IR spectra, the spectra obtained from AFM‐IR can be searchable in existing databases …”

Section: Principles and Applications Of Afm‐irmentioning

confidence: 99%

“…In addition, distortions may occur to IR spectral band shapes and limit detection sensitivity. In polymer characterization, Ghosh et al applied AFM‐IR and obtained infrared spectra and IR mapping images of poly(diphenylbutadyine) (PDPB) fibers at a high spatial resolution (≈100 nm) ( Figure ) . Dazzi et al applied resonance enhanced AFM‐IR with QCL to study a polyurethane film with antioxidant and lubricant as additives.…”

Section: Principles and Applications Of Afm‐irmentioning

confidence: 99%

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Hybrid AFM for Nanoscale Physicochemical Characterization: Recent Development and Emerging Applications

Zhang

2017

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By taking advantage of the innate ability of the immune cells to target tumor cells, in article number 1603121, Cheng Dong, Jian Yang, and co-workers develop a self-powered immune cell-mediated theranostic biodegradable photoluminescent poly (lactic acid) (BPLP-PLA) nanoparticle-based drug delivery system for melanoma targeting and drug delivery. Theranostic Stents In article number 1602925, Sei Kwang Hahn and co-workers report a pH-responsive microbubble-eluting theranostic stent for real-time ultrasound imaging of blood vessels implanted with the stent, and dissolution of fat-rich plaques to prevent the blocking of blood vessels. This smart theranostic stent can facilitate non-invasive monitoring and prevent restenosis after stent implantation. Air Filtration A ripple-like polyamide-6 nanofiber/nets membrane filter composed of two-dimensional nanonets (≈20 nm) and a scaffold framework is fabricated by Bin Ding and co-workers in article number 1603151, by combining an electrospinning/netting technique with the receiving substrate design. By virtue of its small pore size and stable cavity structure, the filter can filtrate ultrafine airborne particles with a high removal efficiency of 99.996%, low air resistance of 95 Pa, using a physical sieving manner.

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“…A more advanced chemical visualization technique is infrared (IR) technology at a nanoscale resolution (nano-IR) in combination with atomic force microscopy (AFM). Nano-IR technology has been shown to be a useful tool for characterization of multilayer laminates, polymer blends, composites, − and cross sections of fibers . The basic principle of nano-IR technology is the combination of AFM and the detection of material-specific photothermal-induced resonance (PTIR).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Interfacial Diffusion in PA/PP-g-MAH Laminates Using Nanoscale Infrared Spectroscopy

2020

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The characterization of polymer–polymer interfaces is of great interest to understand the diffusion process and chemical interactions in polymeric multiphase systems. This study investigated the formation of the interface layer between polyamide (PA) and polypropylene (PP) and its dependency on the maleic anhydride (MAH) content in PP. New insights with a very high level of details on the formation of the interfacial layer are obtained by employing a special technique of atomic force microscopy (AFM) combined with infrared (IR) for chemical imaging at nanoscale spatial resolution. This enables the determination of the interface thickness and even the observation and visualization of the diffusion gradient across the PA/PP interface layer. Combined with classical investigation methods such as interfacial energy and rheology, the method of nano-IR spectroscopy represents a very powerful tool to obtain more insights and a deeper understanding of the interfacial phenomenon in multiphase polymeric systems.

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Conducting polymer nanofibers with controlled diameters synthesized in hexagonal mesophases

Abstract: Conducting poly(diphenylbutadiyne) (PDPB) nanofibers with controlled diameters (5 to 25 nm) and relatively high conductivity were synthesized in soft templates using UV and gamma irradiation.

Cited by 30 publications

References 52 publications

Polymer Nanofibers Exhibiting Remarkable Activity in Driving the Living Polymerization under Visible Light and Reusability

Polymer Nanofibers Exhibiting Remarkable Activity in Driving the Living Polymerization under Visible Light and Reusability

Hybrid AFM for Nanoscale Physicochemical Characterization: Recent Development and Emerging Applications

Investigation of Interfacial Diffusion in PA/PP-g-MAH Laminates Using Nanoscale Infrared Spectroscopy

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