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The morphology and mechanical properties of sodium alginate based electrospun poly(ethylene oxide) nanofibers
Author(s) -
Moon SungCheal,
Ryu BeomYoung,
Choi JaeKon,
Jo ByungWook,
Farris Richard J.
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21216
Subject(s) - materials science , nanofiber , differential scanning calorimetry , electrospinning , biopolymer , ultimate tensile strength , scanning electron microscope , fourier transform infrared spectroscopy , ethylene oxide , chemical engineering , sodium polyacrylate , aqueous solution , polymer , morphology (biology) , composite material , polymer chemistry , copolymer , chemistry , organic chemistry , raw material , physics , genetics , biology , engineering , thermodynamics
The electrospinning of sodium alginate, a natural biopolymer, was performed from aqueous solutions by blending with PEO, a biodegradable polymer. The conductivity and surface tension of solutions of sodium alginate and PEO were investigated by standard methods. The morphology, thermal, and mechanical properties of the electrospun nanofibers were studied using field emission scanning electron microscopy (FE‐SEM), fourier transform infrared spectroscopy (FT‐IR), energy dispersive X‐ray (EDX), differential scanning calorimetry (DSC) and tensile testing. Uniform, smooth, and ultra‐fine nanofibers with diameters of ∼140–190 nm were obtained with solution concentrations of 6–7.2% and sodium alginate/PEO volume ratios of 30:70–50:50. The mechanical strength of the electrospun sodium alginate/PEO mats with good morphology was 21 MPa compared to PEO mats which had a strength of only 10 MPa. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers