Enhanced orientation of PEO polymer chains induced by nanoclays in electrospun PEO/clay composite nanofibers

Wang, Yanming; Lian, Meng; Rong, Jian; Nie, Guangting; Qiao, Jing; Wang, Haiyan; Wu, Dayong; Su, Zhaohui; Niu, Zhongwei; Huang, Yong

doi:10.1007/s00396-012-2875-8

Cited by 35 publications

(28 citation statements)

References 42 publications

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“…In our experiment, the FTIR spectra of electrospun PEO nanofibers were found to be similar to that published by other researchers . Meanwhile, there were no difference among the FTIR spectra of electrospun PEO nanofibers derived from different solvent systems, except the intensity ratio, which means molecular chains conformations are consistent.…”

Section: Resultssupporting

confidence: 87%

Effects of solvent on structures and properties of electrospun poly(ethylene oxide) nanofibers

Song

Chiang

Chu

et al. 2017

J of Applied Polymer Sci

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Poly(ethylene oxide) (PEO) nanofibers were prepared by electrospinning PEO solution with a mixed solvent of ethanol and deionized water. The results show that the mixed solvent system has noteworthy influences on structures and properties of electrospun PEO nanofibers, including molecular chain orientation, crystallinity degree, surface morphology, fiber diameter, diameter distribution, spinnability, and productivity. With increasing ethanol content in the mixed solvent, wrinkly morphologies appear on the surface of PEO nanofibers due to a high evaporation rate of ethanol during electrospinning process. The dielectric constant, dipole moment, conductivity, density, boiling point, and solubility parameter of the mixed solvent become lower with the ethanol content increasing. Besides, the hydrogen-bonding interactions between PEO and solvents become weaker. As a result, PEO nanofibers with larger diameters, lower molecular chain orientation, and crystallinity degree are obtained.

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Section: Resultssupporting

confidence: 87%

Effects of solvent on structures and properties of electrospun poly(ethylene oxide) nanofibers

Song

Chiang

Chu

et al. 2017

J of Applied Polymer Sci

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“…Other than that, the electrospinning process can favor the elongation of the chains and the ordering of the polymer. Wang et al [77] had proven that the electrospinning process can favor the elongation of the chains and the ordering of the polymer instead of the function of the clay itself. Besides clay impregnation within SPEEK polymer matrix, Li et al [78] had conducted an experiment regarding the incorporation of silver ion within the polymer matrix via electrospinning process.…”

Section: Singlementioning

confidence: 99%

A Review on the Fabrication of Electrospun Polymer Electrolyte Membrane for Direct Methanol Fuel Cell

Junoh

Jaafar

Norddin

et al. 2015

Journal of Nanomaterials

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Proton exchange membrane (PEM) is an electrolyte which behaves as important indicator for fuel cell’s performance. Research and development (R&D) on fabrication of desirable PEM have burgeoned year by year, especially for direct methanol fuel cell (DMFC). However, most of the R&Ds only focus on the parent polymer electrolyte rather than polymer inorganic composites. This might be due to the difficulties faced in producing good dispersion of inorganic filler within the polymer matrix, which would consequently reduce the DMFC’s performance. Electrospinning is a promising technique to cater for this arising problem owing to its more widespread dispersion of inorganic filler within the polymer matrix, which can reduce the size of the filler up to nanoscale. There has been a huge development on fabricating electrolyte nanocomposite membrane, regardless of the effect of electrospun nanocomposite membrane on the fuel cell’s performance. In this present paper, issues regarding the R&D on electrospun sulfonated poly (ether ether ketone) (SPEEK)/inorganic nanocomposite fiber are addressed.

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“…[14,15] Laponite®-PEO fibers, films, and hydrogels have been explored for a number of biomedical applications. [4,[16][17][18][19][20] Wang et al [16] studied PEO-Laponite composite nanofibers fabricated via electrospinning. Their work suggested that Laponite could be used as scaffolds for tissue engineering to improve mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…For biomaterials applications, systems containing Laponite together with poly(ethylene oxide) (PEO) and block copolymers containing PEO are of particular interest, because of the good biocompatibility characteristics of both PEO and Laponite . Laponite®‐PEO fibers, films, and hydrogels have been explored for a number of biomedical applications . Wang et al .…”

Section: Introductionmentioning

confidence: 99%

Laponite® and Laponite®‐PEO hydrogels with enhanced elasticity in phosphate‐buffered saline

Liu

Bhatia

2015

Polymers for Advanced Techs

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Hydrogels of the synthetic clay Laponite® and Laponite®-poly (ethylene oxide) (PEO) have long been studied as model systems to understand fundamental aspects of colloidal disks and colloid-polymer systems. More recently, these systems have been explored for a variety of biomedical applications. However, there is limited information in the literature on the fundamental properties of Laponite and Laponite-polymer gels at pH < 9. Here, we report the rheological behavior of Laponite and Laponite-PEO systems at biologically relevant conditions (e.g. physiological pH and ionic strength) and examine the effect of phosphate-buffered saline on the properties of the gel. Our results show that the elastic modulus of both Laponite and Laponite-PEO gels increases dramatically, in some cases by one order of magnitude or more, after immersing gels in phosphate-buffered saline. This may be due to an enhanced edge-face interaction between particles in buffered solutions, which would promote a long-lasting network structure of clay particles. These results are relevant to the design of clay-polymer gels and nanocomposites hydrogels for biomaterials applications.

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Enhanced orientation of PEO polymer chains induced by nanoclays in electrospun PEO/clay composite nanofibers

Cited by 35 publications

References 42 publications

Effects of solvent on structures and properties of electrospun poly(ethylene oxide) nanofibers

Effects of solvent on structures and properties of electrospun poly(ethylene oxide) nanofibers

A Review on the Fabrication of Electrospun Polymer Electrolyte Membrane for Direct Methanol Fuel Cell

Laponite® and Laponite®‐PEO hydrogels with enhanced elasticity in phosphate‐buffered saline

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