alexa Hybrid Fibers With Substantial Filler Contents Through Kinetically Arrested Phase Separation Of Liquid Jet
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Share This Page

Additional Info

Loading Please wait..

3rd International Conference and Exhibition on Materials Science & Engineering
October 06-08, 2014 Hilton San Antonio Airport, USA

Bingbing Li
ScientificTracks Abstracts: J Material Sci Eng
DOI: 10.4172/2169-0022.S1.014
Polymeric materials of structural hierarchy and compositional heterogeneity have attracted wide interest for their potential applications as biomaterials, energy storage devices, and surface coatings. Electrospinning, a simple yet versatile technique, has great potential for developing such materials by controlling the electrospinning process under non-equilibrium conditions. In this study, poly(e-caprolactone) (PCL)/polyhedral oligomeric silsesquioxane (1-propylmethacrylate)-heptaisobutyl substituted (m-iBuPOSS) hybrid fibers with interesting nanopapilla and wrinkled surface features were successfully electrospun from 10:0 to 5:5 by mass PCL/m-iBuPOSS solutions. It is worth mentioning that uniform POSS-filled fibers have been previously reported for only low loadings of POSS as traditional nanofillers. In contrast, this study reports, for the first time, hybrid fibers with substantial POSS loadings up to 50 wt%. The low-surface-energy m-iBuPOSS was used as an essential modulator for the phase separation of the liquid jet along the radial direction. The m-iBuPOSS surface segregation was coupled with rapid solvent evaporation that ?froze? PCL chains in the outmost layer prior to drying of the inner phase, which eventually gave rise to a unique fiber architecture composed of a POSS-rich composite crust and a PCL-rich inner phase. When the POSSrich crust was removed with hexane, the fiber architecture was clearly revealed through a combination of X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and X-ray diffraction (XRD). This study provides new insight into the effect of rapid solvent evaporation coupled with surface-directed phase separation in the liquid jet and its implications on designing novel heterogeneous materials.
Bingbing Li (PhD, Virginia Tech) is an Assistant Professor of Chemistry at Central Michigan University (CMU) and an affiliate faculty of the Indiana University Center for Regenerative Biology and Medicine (IUCRBM) at Indianapolis. She did Postdoctoral research in the Department of Polymer Science and Engineering at the University of Massachusetts at Amherst and was later appointed as a Research Associate and a Research Assistant Professor at the IUCRBM. She has published more than 20 papers on well-reputed journals and served as a reviewer for NSF panels, Biomacromolecules, Langmuir, Macromolecular Bioscience, Soft Matter, the Journal of Chemical Physics, etc.
image PDF   |   image HTML

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version