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Effects of emulsion droplet size on the structure of electrospun ultrafine biocomposite fibers with cellulose nanocrystals.
Biomacromolecules. 2013 Nov 11; 14(11):3801-7.B

Abstract

Electrospinning of cellulose nanocrystals (CNC)/poly(lactic acid) (PLA) emulsions has been demonstrated to be an effective dispersion and alignment method to control assembly of CNC into continuous composite ultrafine fibers. CNC-PLA nanocomposite random-fiber mats and aligned-fiber yarns were prepared by emulsion electrospinning. A dispersed phase of CNC aqueous suspension and an immiscible continuous phase of PLA solution comprised the CNC-PLA water-in-oil (W/O) emulsion system. Under a set of specific conditions, the as-spun composite ultrafine fibers assumed core-shell or hollow structures. In these structures, CNCs were aligned along the core in the core-shell case, or on the wall of the hollow cylinder in the hollow fiber case. CNCs act as nucleating agents influencing PLA crystallinity, and improve the strength and stiffness of electrospun composite fibers. The effects of emulsion droplet size on fiber structural formation and CNC distribution within the electrospun fibers have been carefully examined.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Li Y
Materials Engineering Department, University of British Columbia , 309-6350 Stores Road, Vancouver, BC, Canada V6T 1Z4.
Ko FK
No affiliation info available
Hamad WY
No affiliation info available

MeSH

Biocompatible MaterialsCelluloseEmulsionsLactic AcidMolecular StructureNanoparticlesOilsParticle SizePolyestersPolymersSurface PropertiesWater

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23789830

Citation

Li, Yingjie, et al. "Effects of Emulsion Droplet Size On the Structure of Electrospun Ultrafine Biocomposite Fibers With Cellulose Nanocrystals." Biomacromolecules, vol. 14, no. 11, 2013, pp. 3801-7.
Li Y, Ko FK, Hamad WY. Effects of emulsion droplet size on the structure of electrospun ultrafine biocomposite fibers with cellulose nanocrystals. Biomacromolecules. 2013;14(11):3801-7.
Li, Y., Ko, F. K., & Hamad, W. Y. (2013). Effects of emulsion droplet size on the structure of electrospun ultrafine biocomposite fibers with cellulose nanocrystals. Biomacromolecules, 14(11), 3801-7. https://doi.org/10.1021/bm400540v
Li Y, Ko FK, Hamad WY. Effects of Emulsion Droplet Size On the Structure of Electrospun Ultrafine Biocomposite Fibers With Cellulose Nanocrystals. Biomacromolecules. 2013 Nov 11;14(11):3801-7. PubMed PMID: 23789830.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of emulsion droplet size on the structure of electrospun ultrafine biocomposite fibers with cellulose nanocrystals. AU - Li,Yingjie, AU - Ko,Frank K, AU - Hamad,Wadood Y, Y1 - 2013/10/21/ PY - 2013/6/25/entrez PY - 2013/6/25/pubmed PY - 2014/6/25/medline SP - 3801 EP - 7 JF - Biomacromolecules JO - Biomacromolecules VL - 14 IS - 11 N2 - Electrospinning of cellulose nanocrystals (CNC)/poly(lactic acid) (PLA) emulsions has been demonstrated to be an effective dispersion and alignment method to control assembly of CNC into continuous composite ultrafine fibers. CNC-PLA nanocomposite random-fiber mats and aligned-fiber yarns were prepared by emulsion electrospinning. A dispersed phase of CNC aqueous suspension and an immiscible continuous phase of PLA solution comprised the CNC-PLA water-in-oil (W/O) emulsion system. Under a set of specific conditions, the as-spun composite ultrafine fibers assumed core-shell or hollow structures. In these structures, CNCs were aligned along the core in the core-shell case, or on the wall of the hollow cylinder in the hollow fiber case. CNCs act as nucleating agents influencing PLA crystallinity, and improve the strength and stiffness of electrospun composite fibers. The effects of emulsion droplet size on fiber structural formation and CNC distribution within the electrospun fibers have been carefully examined. SN - 1526-4602 UR - https://www.unboundmedicine.com/medline/citation/23789830/Effects_of_emulsion_droplet_size_on_the_structure_of_electrospun_ultrafine_biocomposite_fibers_with_cellulose_nanocrystals_ L2 - https://doi.org/10.1021/bm400540v DB - PRIME DP - Unbound Medicine ER -