Molecular orientation in individual electrospun nanofibers measured via polarized Raman spectroscopy

Leon M. Bellan, Harold G. Craighead

Research output: Contribution to journalArticle

60 Scopus citations

Abstract

Using polarized Raman spectroscopy, we have recorded Raman spectra from individual electrospun Nylon-6 nanofibers. Analysis of these single-fiber spectra, compared to those of unoriented and oriented Nylon-6 films, indicates significant molecular orientation. Because electrospinning produces fibers in a jet with a large strain rate, this molecular orientation is expected. We present quantitative measurements of molecular orientation in a single nanofiber and compare these to those of film samples. Such measurements could yield information about the uniformity of the electrospinning process and resulting fibers, and may also allow comparison between spectrally measured orientation functions and single-fiber mechanical properties.

Original languageEnglish (US)
Pages (from-to)3125-3129
Number of pages5
JournalPolymer
Volume49
Issue number13-14
DOIs
StatePublished - Jun 23 2008

Keywords

  • Electrospinning
  • Orientation
  • Polarized Raman

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

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