Spontaneous Formation of Poly(<i>p</i>-phenylenevinylene) Nanofiber Yarns through Electrospinning of a Precursor

Okuzaki, Hidenori; Takahashi, T.; Miyajima, Naoya; Suzuki, Yasuhiro; Kuwabara, Tetsuo

doi:10.1021/ma0608673

Cited by 61 publications

(53 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other studies support the formation of poly(p-phenylenevinylene) nanofiber yarns through electrospinning a precursor [65], and ultrafine poly[2-methoxy-5-(2 0 -ethylhexyloxy)-1,4-phenylene-vinylene] (MEH-PPV) nanofibers using polystyrene or poly(vinyl pyrrolidone) (PVP) as polymer carries [66,67]. Pure MEH-PPV fibers obtained after the removal of PVP by Soxhlet extraction showed a remarkable blue shift of the photoluminescence (PL) peak.…”

Section: Poly(p-phenylene Vinylenes) (Ppvs)mentioning

confidence: 89%

Nanostructured Conductive Polymers by Electrospinning

Chronakis

2010

Nanostructured Conductive Polymers

View full text Add to dashboard Cite

Section: Poly(p-phenylene Vinylenes) (Ppvs)mentioning

confidence: 89%

Nanostructured Conductive Polymers by Electrospinning

Chronakis

2010

Nanostructured Conductive Polymers

View full text Add to dashboard Cite

“…Instead, polymer blends with more readily electropun polymers, such as poly (ethylene oxide) or poly(vinylpyrrolidone), have been applied for electrospinning. [21][22][23][24] In this study, we report, for the first time, the electrospinning of redox-active, nitroxide-containing polymers to prepare micrometer-scale fibrous membranes with high surface area. In addition to its application-oriented viewpoint, electrospinning of radical containing polymers is of interest from a fundamental point of view in terms of rheological studies of radical polymers and durability of radical sites under applied high electric potential, and contributes new insights into free radical chemistry.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning of radical polymers: redox-active fibrous membrane formation

Suga

Hunley

Long

et al. 2011

Polym J

View full text Add to dashboard Cite

Redox-active but highly durable nitroxide radicals, that is, 2,2,6,6-tetramethylpiperidinyl-4-oxy (TEMPO), enabled direct electrospinning of radical-containing polymers without additional processing aids (such as polymer blends, post-doping, or protection/deprotection) and produced redox-active fibrous membranes with high surface area. The solution rheological behavior of the TEMPO-substituted polymethacrylate was similar to the neutral conventional polymers, and electrospinning of the radical polymers yielded submicrometer-scaled fibrous membranes without any defects on the radical moiety. The obtained membrane exhibited stable redox response, leading to redox catalysts or electrode-active materials toward organic-based flexible rechargeable battery. Polymer Journal (2012) 44, 264-268; doi:10.1038/pj.2011.120; published online 7 December 2011Keywords: electrospinning; functional polymers; radical; redox INTRODUCTION Among stable organic radical molecules that possess an unpaired electron, nitroxide radicals (such as 2,2,6,6-tetramethylpiperidinyl-4-oxy (TEMPO)) have attracted much attention due to their utilization as spin-labels, spin traps, and capping agents for controlled radical polymerization. 1 Besides, based on the stable redox couple between the nitroxide radical and its oxidized form (oxoammonium cation, Scheme 1), nitroxide-functionalized polymers and organic/inorganic composites have been employed as heterogeneous redox reagents, which catalyze the oxidation of alcohols into aldehydes and ketones. 2 This metal-free oxidation process has resurfaced as a green or environmentally-compatible chemical process. 3 Recently, we have explored and utilized nitroxide polymers as cathode-active, charge-storage materials for secondary Li-ion batteries. [4][5][6][7][8][9] The organic radical battery composed of a radical polymer cathode has several advantages: high charge capacity (ca. 100-140 mAh g À1 ), high-charging and discharging rate performance (30 s for complete charge), and long cycle life often exceeding 1000 cycles. For both applications, to enhance the turnover cycles for catalysts or charge/discharge performance for electrode-active materials, construction of nitroxide supports with high surface area has an important role due to efficient mass (substrate or counter ion) transfer accompanied by the redox reaction. 10 Prompted by the design of soft portable electronic equipments, such as roll-up displays and wearable devices, the development of bendable and flexible batteries has attracted increased interest. 11 A fibrous membrane morphology improves mechanical flexibility and possesses an enhanced surface area to volume ratio.

show abstract

“…Electrospinning has been successfully used to produce nanofibers of polyaniline (PANI) [20][21][22][23], polypyrrole (PPy) [24][25][26][27][28][29][30], poly(p-phenylene vinylenes) (PPVs) [27][28][29][30][31][32][33] as well as polythiophenes (PThs) [34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…Different strategies have been used to overcome this problem: the use of more flexible polymer precursors or even monomers that can be converted into ICPs in a second step [27,28,[39][40][41], the addition of a spinable polymer to assist the formation of fibers [20,26,32], or the use of a core-shell coaxial electrospinning strategy, the ICP being the core and the spinable polymer being the post-removable shell [37] or inversely, the spinable polymer as the core and the ICP as the shell [42]. All of these strategies have been used with success and present their respective set of advantages and limitations.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of poly-3-hexylthiophene/polyethylene oxide nanofibers using electrospinning

2008

View full text Add to dashboard Cite

P3HT-PEO blend nanofibers were produced by electrospinning from chloroform solutions. A morphological study was carried out as a function of the processing parameters as well as the ratio between the two polymers. The fibers containing at least 60 wt.% of P3HT presented striated surfaces that could be explained by the alignment of the polymer domains along the fiber axis. The structural arrangement of the polymers was found to vary according to the polymers relative contents. The maximum electrical conductivity found for unaligned mats was 0.16 S/cm and increased to 0.3 S/cm when the nanofibers were aligned along a preferential direction.Crown

show abstract

Spontaneous Formation of Poly(p-phenylenevinylene) Nanofiber Yarns through Electrospinning of a Precursor

Cited by 61 publications

References 11 publications

Nanostructured Conductive Polymers by Electrospinning

Nanostructured Conductive Polymers by Electrospinning

Electrospinning of radical polymers: redox-active fibrous membrane formation

Fabrication of poly-3-hexylthiophene/polyethylene oxide nanofibers using electrospinning

Contact Info

Product

Resources

About