Effect of solvents on electro-spinnability of polystyrene solutions and morphological appearance of resulting electrospun polystyrene fibers

Jarusuwannapoom, Teeradech; Hongrojjanawiwat, Walaiporn; Jitjaicham, Sujinda; Wannatong, Ladawan; Nithitanakul, Manit; Pattamaprom, Cattaleeya; Koombhongse, Piyawit; Rangkupan, Ratthapol; Supaphol, Pitt

doi:10.1016/j.eurpolymj.2004.10.010

Cited by 419 publications

(293 citation statements)

References 11 publications

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“…The electrostatic repulsion between the deposited and incoming bundles may further enhance the parallel alignment since this morphology represents the lowest energy configuration for an array system of charged fibers [12]. Thus, the bundle formation and the self-alignment of the electrospun fibers from PP-g-PS/ PCL-PS blends may be explained as follows: (i) The highly charged viscous jets tightly looped and were preserved in the shape of solid fibers [13], (ii) The significant amount of the residual solvent can produce merged fibers upon reaching the collector [14]; this is due to the fact that the boiling point of DMF is fairly high, and there was not enough time for the solvent in the charged jet to completely evaporate before the "dried" fibers are deposited on the collector [15], (iii) The formation of the bundle and the self-alignment is due to the PS cylindrical confinement and the fact that it is probably located on the surface of the fibers.…”

Section: Resultsmentioning

confidence: 99%

Self-aligned and bundled electrospun fibers prepared from blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with a hairy-rod polyphenylene copolymer

Uyar

Cianga

et al. 2009

Materials Letters

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Bundled and self-aligned fibers were obtained by electrospinning blends of polystyrene (PS) and poly (methyl methacrylate) (PMMA) with a hairy-rod polyphenylene-g-polystyrene/poly(a-caprolactone) (PP-g-PS/PCL) copolymer. The self-alignment and bundling characteristics of these electrospun fibers were ascribed to the unique molecular architecture of the conjugated polymer, PP-g-PS/PCL, and its interactions with the solvent and the polymer matrixes used for the electrospinning. The self-alignment and bundling was found to be much more pronounced for PP-g-PS/PCL-PS blend when compared to PP-g-PS/PCL-PMMA blend. Furthermore we found that the degree of self-alignment of the fiber bundles was enhanced by increasing the amount of PP-g-PS/PCL in the blends but the alignment completely disappeared when the solvent dimethylformamide was changed to chloroform.

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Section: Resultsmentioning

confidence: 99%

Self-aligned and bundled electrospun fibers prepared from blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with a hairy-rod polyphenylene copolymer

Uyar

Cianga

et al. 2009

Materials Letters

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“…Indeed, these inorganic substances are often difficult to be processed by their own into highly porous structures. Moreover, their inherent brittleness limits their use as plain materials for scaffold fabrication, so that, in order to obtain structural resistant supports, it is necessary to combine them with polymer matrices [21,42].…”

Section: Biomaterialsmentioning

confidence: 99%

“…Some mathematical approaches have been developed for relating the concentration regime and electrospinnability of polymer solutions [40,41]. In addition to polymer concentration and molecular weight, the selected solvent system profoundly influences fibre morphology [42,43]. Indeed, electrical…”

Section: Porous Scaffold Fabrication By Electrospinningmentioning

confidence: 99%

Porous Polymeric Bioresorbable Scaffolds for Tissue Engineering

Gualandi

2011

Springer Theses

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and some lactide copolymers) and of non-commercial polyesters (i.e. poly-ω-pentadecalactone and some of its copolymers) were explored and discussed.Two techniques were employed to fabricate scaffolds: supercritical carbon dioxide (scCO 2 ) foaming and electrospinning (ES). The former is a powerful technology that enables to produce 3D microporous foams by avoiding the use of solvents that can be toxic to mammalian cells. The scCO 2 process, which is II commonly applied to amorphous polymers, was successfully modified to foam a highly crystalline poly(ω-pentadecalactone-co-ε-caprolactone) copolymer and the effect of process parameters on scaffold morphology and thermo-mechanical properties was investigated.In the course of the present research activity, sub-micrometric fibrous nonwoven meshes were produced using ES technology. Electrospun materials are considered highly promising scaffolds because they resemble the 3D organization of native extra cellular matrix. A careful control of process parameters allowed to fabricate defect-free fibres with diameters ranging from hundreds of nanometers to several microns, having either smooth or porous surface. Moreover, versatility of ES technology enabled to produce electrospun scaffolds from different polyesters as well as "composite" non-woven meshes by concomitantly electrospinning different fibres in terms of both fibre morphology and polymer material. The 3D-architecture of the electrospun scaffolds fabricated in this research was controlled in terms of mutual fibre orientation by properly modifying the instrumental apparatus. This aspect is particularly interesting since the micro/nano-architecture of the scaffold is known to affect cell behaviour.Since last generation scaffolds are expected to induce specific cell response, the present research activity also explored the possibility to produce electrospun scaffolds bioactive towards cells. Bio-functionalized substrates were obtained by loading polymer fibres with growth factors (i.e. biomolecules that elicit specific cell behaviour) and it was demonstrated that, despite the high voltages applied during electrospinning, the growth factor retains its biological activity once

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“…The effects of solvents and concentrations of polystyrene (PS) solutions on the morphology of the electrospun PS fibers have been studied by Jarusuwannapoom et al 30) Eighteen solvents with different basic properties (boiling point, electric conductivity, surface tension etc.) were used to synthesize the PS fibers.…”

Section: Resultsmentioning

confidence: 99%

Electrospinning of ferroelectric (Na,K)NbO<sub>3</sub> fiber through citrate precursor route

Kato

Kakimoto

2015

J. Ceram. Soc. Japan

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Ferroelectric ceramic fiber is expected to demonstrate a wide variety of practical applications in industrial fields due to the flexibility and shape anisotropy. Lead-free ferroelectric (Na,K)NbO 3 (NKN) fiber was synthesized through electrospinning method using aqueous-based citrate precursor (CP). The morphology of electrospun fibers was observed and the properties of the precursor solution, such as viscosity, electrical conductivity and evaporation rate, were investigated. Addition of ethanol and acetic acid to the solvent of the PVA solution worked well for the electrospinning since both additives could control the electrical conductivity as well as evaporation rate of the CP/PVA prepared solution. The properties of the precursor, especially electrical conductivity and evaporation rate have significant influence on the morphology and homogeneity of the developed fibers. The homogeneous NKN fibers with a single perovskite structure of orthorhombic phase at room temperature and controllable diameter ranging approximately 100 to 1100 nm were obtained, indicating that the electrospinning of ferroelectric NKN fiber through CP route was successfully conducted.

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Effect of solvents on electro-spinnability of polystyrene solutions and morphological appearance of resulting electrospun polystyrene fibers

Cited by 419 publications

References 11 publications

Self-aligned and bundled electrospun fibers prepared from blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with a hairy-rod polyphenylene copolymer

Self-aligned and bundled electrospun fibers prepared from blends of polystyrene (PS) and poly(methyl methacrylate) (PMMA) with a hairy-rod polyphenylene copolymer

Porous Polymeric Bioresorbable Scaffolds for Tissue Engineering

Electrospinning of ferroelectric (Na,K)NbO<sub>3</sub> fiber through citrate precursor route

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