Evidence for molecular orientation and residual charge in the electrospinning of poly(butylene terephthalate) nanofibers

Document Type

Article

Publication Date

3-6-2007

Abstract

Poly(butylene terephthalate) electrospun fibers were analyzed by a thermally stimulated current (TSC) technique. In the absence of an electric field, a spontaneous current was released near the glass transition, indicating a dipole relaxation process. A monotonic increase in current generated by dissipation of residual was observed with increasing temperature below the melting point. A peak in the charge dissipation current near the melting point indicates that a substantial amount of residual charge is trapped within or at the interface of the crystalline phase. Molecular orientation was also probed by birefringence analysis. Electrospun fibers showed a high level of birefringence, which extinguished upon melting. © 2007 American Chemical Society.

Identifier

33947255619 (Scopus)

Publication Title

Macromolecules

External Full Text Location

https://doi.org/10.1021/ma061342d

ISSN

00249297

First Page

1693

Last Page

1697

Issue

5

Volume

40

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