Effects of Molecular Weight and Temperature on Fiber Diameter of Poly(ε-caprolactone) Melt Electrospun Fiber

Junghyuk Ko; Seungwon Jun; Jason Keonhag Lee; Patrick C. Lee; Martin B.G. Jun

Effects of Molecular Weight and Temperature on Fiber Diameter of Poly(ε-caprolactone) Melt Electrospun Fiber

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Type: Academic journal

Author: Junghyuk Ko (niversity of Victoria) Seungwon Jun (University of Victoria) Jason Keonhag Lee (University of Victoria) Patrick C. Lee (University of Vermont) Martin B.G. Jun (University of Victoria)

Journal: The Korean Society of Manufacturing Technology Engineers Journal of the Korean Society of Manufacturing Technology Engineers Vol.24 No.2 KCI Accredited Journals

Published: 2015.4

Pages: 160 - 165 (6page)

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Effects of Molecular Weight and Temperature on Fiber Diameter of Poly(ε-caprolactone) Melt Electrospun Fiber

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The 14k, 45k, and 70k Mw PCL have different crystallization temperatures and therefore have slightly different characteristics affecting the fiber diameter. To observe these behaviors, the fiber was produced at every step of 10oC for each molecular weights and the diameter was measured. Moreover, the fiber was fabricated over the cooled ground plate to observe the change in fiber diameter in comparison to the normal ground plate. In case of molecular Mw 14k PCL, the diameter increased as the temperature increased. For Mw 45k PCL, the fiber diameter decreased as the temperature increased. As of Mw 70k PCL, the fiber diameter decreased with increasing temperature as well. When the experiment was conducted over the cooled collector plate, the data did not change significantly from the previous lexperiments.

#Melt electrospinning #Fiber diameter #Molecular weight #Scaffolds

ABSTRACT
1. Introduction
2. Experimental setup and Material
3. Results and Discussion
4. Conclusion
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1. [학술지(정기간행물)] - Ko, J. / 2014 / Using Mathematical Modeling to Control Topographical Properties of Poly(Ε-caprolactone : Melt Electrospun Scaffolds / Journal of Micromechanics and Microengineering 24 (6) : 56009 ~ 65021

2. [학술지(정기간행물)] - Li, X. H. / 2014 / Effect of Oriented Fiber Membrane Fabricated Via Needleless Melt Electrospinning on Water Filtration Efficiency / Desalination 344 (8) : 266 ~ 273

3. [학술지(정기간행물)] - Deitzel, J. M. / 2001 / The Effect of Processing Variables on the Morphology of Electrospun Nanofibers and Textiles / Polymer 42 (1) : 261 ~ 272

4. [학술지(정기간행물)] - Hlavacek, M. / 1995 / Break-up of Oil-in-Water Emulsions Induced by Permeation through a Microfiltration Membrane / Journal of Membrane Science 102 : 1 ~ 7

5. [학술지(정기간행물)] - Li, D. / 2004 / Direct Fabrication of Composite and Ceramic Hollow Nanofibers by Electrospinning / Nano Letters 4 (5) : 933 ~ 938

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