Stretching-induced crystallinity and orientation of polylactic acid nanofibers with improved mechanical properties using an electrically charged rotating viscoelastic jet

Liao, Chia Chun; Wang, Cheng Chien; Chen, Chuh Yung

doi:10.1016/j.polymer.2011.07.031

Cited by 61 publications

(40 citation statements)

References 54 publications

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“…Additionally, tensile force induced by rotating mandrel can also increase molecular alignment and crystallinity [28]. The improved elastic modulus achieved in this mandrel with gap may be strongly attributed to the enhanced molecular orientation and crystallinity, as demonstrated in the study of rotary jet electrospinning [23,24]. The tape covering the gap was also likely providing support for fibre deposition.…”

Section: Tensile Propertiesmentioning

confidence: 77%

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The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

Anindyajati

Boughton

Ruys

2015

MATEC Web of Conferences

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Abstract. Electrospinning is a technique that can produce fibres in the nanoscale range. This process is useful for many applications, including fabrication of fibrous scaffolds for fibrocartilage tissue engineering. For this application, cell attachment and tissue development is influenced by fibre morphology and mechanical properties. This electrospinning study investigated the influence of rotating collector design on morphology and mechanical properties of electrospun polycaprolactone fibre. The experiment employed 4 mandrel designs: 1) full surface of aluminium; 2) with gap feature; 3) with gap feature and teflon support; 4) with gap feature and tape support. The highest elastic modulus was obtained from mandrel with gap and tape support, which was 24.6 MPa and significantly higher compared to fibres acquired from other collector designs. Fibre diameter attained was identical across the different collectors, ranging from 0.5 -2 µm. Gap introduction showed enhanced alignment in the resultant fibre. It can be concluded that fibre alignment and tensile properties can be improved by simply modifying the collector design. This improved fibre mat can be developed as a biomaterial for fibrocartilage tissue engineering scaffolds.

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Section: Tensile Propertiesmentioning

confidence: 77%

“…Yarn with oriented and continuous microfibres has also been fabricated using a dual collection ring [21]. Aligned fibrous structure with improved mechanical properties was achieved using rotary jet spinning, in which both centrifugal and electrostatic force enhance polymer crystallinity and molecular orientation [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

Anindyajati

Boughton

Ruys

2015

MATEC Web of Conferences

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“…Among the several techniques to produce scaffolds, electrospinning is one of the most versatile alternatives for controlling the structural parameters of fibrous scaffolds such as diameter, texture, porosity and fiber orientation [4][5][6][7]. An interesting work about the effect of crystallinity of PLA microfiber by electrical and centrifugal field on mechanical responses was described by Liao et al [8]. Lim and Tan reported that electrospun polycaprolactone (PCL) nanofibers with smaller diameters had a higher degree of molecular orientation, crystallinity and mechanical properties [9].…”

Section: Introductionmentioning

confidence: 99%

Structure of poly(lactic-acid) PLA nanofibers scaffolds prepared by electrospinning

Gómez-Pachón

Vera‐Graziano

Campos

2014

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Nylon 11 and poly(lactic acid) (PLA) have attracted great interest since they can be produced from renewable resources, that is, the beginning material for nylon 11 is castor oil [1,2] and these for PLA can be starch, cane molasses and beet sugar [3,4]. Poly(ester amide)s (PEAs) are a class of very promising materials combining the favorable properties of polyesters (biodegradability) and polyamides (good mechanical and thermal behavior) [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(ester amide) from remewable resources through melt polycondensation

Ge¹,

Yuan²,

Luo³

et al. 2014

Express Polym. Lett.

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Abstract. Biodegradable poly(ester amide)s (PEAs) were synthesized from lactic acid and 11-aminoundecanoic acid via melt polycondensation. Molecular weights, chemical structures and thermal properties of the poly(ester amide)s were characterized in terms of gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FTIR), 1 H nuclear magnetic resonance ( 1 H NMR), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively. The PEAs have low molecular weights and display a lower cold crystallization temperature as well as smaller crystallinity by comparison with the pure poly(lactic acid) (PLA). The incorporation of the 11-aminoundecanoic acid into the PLA chain not only improved the thermal stability but changed the decomposition process.

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Stretching-induced crystallinity and orientation of polylactic acid nanofibers with improved mechanical properties using an electrically charged rotating viscoelastic jet

Cited by 61 publications

References 54 publications

The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

The Effect of Rotating Collector Design on Tensile Properties and Morphology of Electrospun Polycaprolactone Fibres

Structure of poly(lactic-acid) PLA nanofibers scaffolds prepared by electrospinning

Synthesis and characterization of poly(ester amide) from remewable resources through melt polycondensation

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