Journal
POLYMER DEGRADATION AND STABILITY
Volume 96, Issue 11, Pages 1984-1988Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2011.08.012
Keywords
Electrospinning; Degradation; Nylon-6; True nano fibers
Categories
Funding
- Ministry of Knowledge Economy
- Korean Government
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In this work, we studied solvent-induced polymer degradation and its effect on the morphology of electrospun fibers. Nylon-6 in formic acid solvent was allowed to degrade by simply allowing it to stand for a long time, and nanofibrous mats were fabricated by taking a fraction of this solution at different time intervals via electrospinning under the same electrospinning conditions. FE-SEM images of the mats indicate that the nanofiber diameter gradually decreased with the standing time of solution, and large numbers of true nano fibers (<50 nm in diameter) were obtained. MALDI-TOF analysis revealed that the formation of low-molecular weight ions was caused by solvent degradation. FT-IR, DSC, XRD, and TGA analyses of electrospun mats showed that some physical properties, such as bond strength, crystallinity, and thermal stability also depended on solvent degradation. The obtained sub-nanofibrous mat has potential applications in different bioengineering fields. (C) 2011 Elsevier Ltd. All rights reserved.
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