TY - JOUR
T1 - Co-solvent mediated fiber diameter and fiber morphology control in electrospinning of sol-gel formulations
AU - Larsen, Gustavo
AU - Skotak, Maciej
N1 - Funding Information:
The authors thank financial support from the Nebraska Research Initiative, and the National Institutes of Health.
PY - 2008/12/15
Y1 - 2008/12/15
N2 - Understanding the hydrolysis, condensation and solvent evaporation processes in precursor sols for electrospun ultrafine fibers permits good control over fiber diameter and morphology in a reproducible manner. The (CH3CH2CH2O)4Ti/AcOH/Poly(n-Vinyl Pyrrolidone)/Ethanol sol-gel system is used to illustrate this principle. Four different co-solvents (ether, DMF, DMSO and formamide) were also used to establish their impact on fiber diameter. Among other physical properties of solvents, the relative volatility of the solvent mixtures used in this study was found to influence the morphology of the electrospun fibers by affecting the stability and range of existence of the electrified jet.
AB - Understanding the hydrolysis, condensation and solvent evaporation processes in precursor sols for electrospun ultrafine fibers permits good control over fiber diameter and morphology in a reproducible manner. The (CH3CH2CH2O)4Ti/AcOH/Poly(n-Vinyl Pyrrolidone)/Ethanol sol-gel system is used to illustrate this principle. Four different co-solvents (ether, DMF, DMSO and formamide) were also used to establish their impact on fiber diameter. Among other physical properties of solvents, the relative volatility of the solvent mixtures used in this study was found to influence the morphology of the electrospun fibers by affecting the stability and range of existence of the electrified jet.
KW - FTIR measurements
KW - Nano-composites
KW - Organic-inorganic hybrids
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U2 - 10.1016/j.jnoncrysol.2008.08.002
DO - 10.1016/j.jnoncrysol.2008.08.002
M3 - Article
AN - SCOPUS:55649115504
VL - 354
SP - 5547
EP - 5554
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
IS - 52-54
ER -