Novel nanostructured star-shaped polyaniline derivatives and their electrospun nanofibers with gelatin

Massoumi, Bakhshali; Aali, Nazila; Jaymand, Mehdi

doi:10.1039/c5ra23100k

Cited by 25 publications

(8 citation statements)

References 59 publications

(61 reference statements)

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“…3b). [35][36][37] Although the absorption at around 600-650 nm was decreased, the broad absorption band was observed up to near 920 nm. This is not following Drude absorption model, indicating that PANI-Zn was weakly doped with the presence of quinoid groups.…”

Section: Pani-ebmentioning

confidence: 99%

In situ formation of molecular-scale ordered polyaniline films by zinc coordination

et al. 2017

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Considerable research approaches have focused on improving the crystallinity of conducting polymers to enhance the electrical conductivity. However, it is difficult to control the arrangement of polymer chains without the use of expensive and complex methods because of the intrinsic morphology of polymers. Herein, we report a one-step in situ process to produce controlled molecular-scale ordered polyaniline (PANI) films by coordination crosslinking with Zn ions using solvent-vapor thermal annealing (SVTA). The resulting PANI film crosslinked by Zn coordination has a face-centered cubic structure at the molecular scale, which was confirmed by high-voltage electron microscopy. The in situ coordination crosslinking produced a new class of molecular ordering in the PANI films and drastically enhanced their conductivity, showing their potential for use in various electronic and energy devices.

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Section: Pani-ebmentioning

confidence: 99%

In situ formation of molecular-scale ordered polyaniline films by zinc coordination

et al. 2017

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“…The G4‐PTh/PCL nanofibers were prepared by subsequent electrospinning the same volume solutions of G4‐PTh (1% w/v), and PCL (3% w/v) under conditions described in our previous works …”

Section: Methodsmentioning

confidence: 99%

“…Electrospinning of the G4-PTh and PCL The G4-PTh/PCL nanofibers were prepared by subsequent electrospinning the same volume solutions of G4-PTh (1% w/v), and PCL (3% w/v) under conditions described in our previous works. 30,31 Biocompatibility analysis Cell culture. The mouse osteoblast cells (MC3T3-E1 cell line) was cultured into flasks, and kept in a humidified incubator with 5% CO 2 at 378C.…”

Section: Synthesis Of G4-pth Via Chemical Oxidation Polymerization Mementioning

confidence: 99%

Development of novel electrically conductive scaffold based on hyperbranched polyester and polythiophene for tissue engineering applications

Jaymand

Sarvari

Abbaszadeh

et al. 2016

J Biomedical Materials Res

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A novel electrically conductive scaffold containing hyperbranched aliphatic polyester (HAP), polythiophene (PTh), and poly(ε-caprolactone) (PCL) for regenerative medicine application was succesfully fabricated via electrospinning technique. For this purpose, the HAP (G4; fourth generation) was synthesized via melt polycondensation reaction from tris(methylol)propane and 2,2-bis(methylol)propionic acid (bis-MPA). Afterward, the synthesized HAP was functionalized with 2-thiopheneacetic acid in the presence of N,N-dicyclohexyl carbodiimide, and N-hydroxysuccinimide as coupling agent and catalyst, respectively, to afford a thiophene-functionalized G4 macromonomer. This macromonomer was subsequently used in chemical oxidation copolymerization with thiophene monomer to produce a star-shaped PTh with G4 core (G4-PTh). The solution of the G4-PTh, and PCL was electrospun to produce uniform, conductive, and biocompatible nanofibers. The conductivity, hydrophilicity, and mechanical properties of these nanofibers were investigated. The biocompatibility of the electrospun nanofibers were evaluated by assessing the adhesion and proliferation of mouse osteoblast MC3T3-E1 cell line and in vitro degradability to demonstrate their potential uses as a tissue engineering scaffold. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2673-2684, 2016.

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“…The photograph of the Poly (N-methyl aniline)-Li nanocomposite (Figure 5) shows the morphology of the nanofibers and the polymer material as spherical shaped with agglomerated Lithium ions. The average diameter of the nanofibers (star-shaped) was in the range of 300±50 nm [11]. The agglomerated Lithium nanoscale materials show a spherical shape with a size of ~64 nm.…”

Section: Fe-sem (First Emission-scanning Electron Microscopy)mentioning

confidence: 99%

Poly (N-Methyl Aniline)-Li Nanocomposite as an Electrolyte for Rechargeable Battery: In-situ Recipe

et al. 2020

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The synthesis of cost-effective and safe polymeric nanocomposite materials has been a subject of interest and study for material science researchers. Poly (N-Methyl Aniline) –Li nanocomposite has been synthesized by a one-pot in-situ method and has been explored as an electrolyte in the battery. Poly (N-Methyl Aniline)-Li nanocomposite prepared, has been characterized by UV-visible, FTIR, FE-SEM, X-ray diffraction techniques. A mechanism of interaction of lithiumion with nitrogen at the imine site has been proposed. The charge-discharge process of poly (N-Methyl Aniline) –Li nanocomposite, when used in the battery, has been discussed.

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Novel nanostructured star-shaped polyaniline derivatives and their electrospun nanofibers with gelatin

Abstract: The aim of this study is the synthesis, characterization and investigation of some physicochemical properties of the star-shaped polyaniline derivatives. The nanofibers of the synthesized star-shaped polymers with gelatin were also prepared.

Cited by 25 publications

References 59 publications

In situ formation of molecular-scale ordered polyaniline films by zinc coordination

In situ formation of molecular-scale ordered polyaniline films by zinc coordination

Development of novel electrically conductive scaffold based on hyperbranched polyester and polythiophene for tissue engineering applications

Poly (N-Methyl Aniline)-Li Nanocomposite as an Electrolyte for Rechargeable Battery: In-situ Recipe

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