Molecular orientation in individual electrospun nanofibers measured via polarized Raman spectroscopy

Leon M. Bellan; Harold G. Craighead

doi:10.1016/j.polymer.2008.04.061

Molecular orientation in individual electrospun nanofibers measured via polarized Raman spectroscopy

Leon M. Bellan, Harold G. Craighead

Research output: Contribution to journal › Article › peer-review

63 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 language	English (US)
Pages (from-to)	3125-3129
Number of pages	5
Journal	Polymer
Volume	49
Issue number	13-14
DOIs	https://doi.org/10.1016/j.polymer.2008.04.061
State	Published - Jun 23 2008

Keywords

Electrospinning
Orientation
Polarized Raman

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics

Access to Document

10.1016/j.polymer.2008.04.061

Cite this

@article{6203e91a8df14093a72f960659370fa9,

title = "Molecular orientation in individual electrospun nanofibers measured via polarized Raman spectroscopy",

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.",

keywords = "Electrospinning, Orientation, Polarized Raman",

author = "Bellan, {Leon M.} and Craighead, {Harold G.}",

note = "Funding Information: The authors wish to thank Lee Gordon of KNF Corporation for donating unoriented Nylon-6 film, and Richard Bormett, Lynden Archer, and Christopher Umbach for useful discussions regarding Raman spectroscopy. This material is based upon work supported by the Cornell Nanobiotechnology Center (NBTC), a STC Program of the National Science Foundation under Agreement No. ECS-9876771, and the Cornell Center for Materials Research supported by the National Science Foundation under Award Number DMR-0520404. The authors thank the National Science Foundation for partial support of this work under Grant No. HRD-0630456.",

year = "2008",

month = jun,

day = "23",

doi = "10.1016/j.polymer.2008.04.061",

language = "English (US)",

volume = "49",

pages = "3125--3129",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier BV",

number = "13-14",

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TY - JOUR

T1 - Molecular orientation in individual electrospun nanofibers measured via polarized Raman spectroscopy

AU - Bellan, Leon M.

AU - Craighead, Harold G.

N1 - Funding Information: The authors wish to thank Lee Gordon of KNF Corporation for donating unoriented Nylon-6 film, and Richard Bormett, Lynden Archer, and Christopher Umbach for useful discussions regarding Raman spectroscopy. This material is based upon work supported by the Cornell Nanobiotechnology Center (NBTC), a STC Program of the National Science Foundation under Agreement No. ECS-9876771, and the Cornell Center for Materials Research supported by the National Science Foundation under Award Number DMR-0520404. The authors thank the National Science Foundation for partial support of this work under Grant No. HRD-0630456.

PY - 2008/6/23

Y1 - 2008/6/23

N2 - 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.

AB - 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.

KW - Electrospinning

KW - Orientation

KW - Polarized Raman

UR - http://www.scopus.com/inward/record.url?scp=45049083251&partnerID=8YFLogxK

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U2 - 10.1016/j.polymer.2008.04.061

DO - 10.1016/j.polymer.2008.04.061

M3 - Article

AN - SCOPUS:45049083251

SN - 0032-3861

VL - 49

SP - 3125

EP - 3129

JO - Polymer

JF - Polymer

IS - 13-14

ER -