Core/shell structure of electrospun polycarbonate nanofibers

Xiaofeng Wang, Yiyang Xu, Yongchao Jiang, Jing Jiang*, Lih Sheng Turng, Qian Li

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

6 Scopus citations

Abstract

Internal structure is the key to tailoring the performance of electrospun (ES) nanofibers. However, it still remains very challenging to characterize the structures inside ES fibers. In this study, ES polycarbonate (PC) nanofibers were successfully cut open along and across the fiber axis by embedding. The characterization results revealed that these sections exhibited a heterogeneous core layer structure was formed due to the phase separation. A clear core/shell-like structure consequently formed, which is caused by the different evaporation behavior. The thickness of the shell layer slightly decreased with decreased fiber diameter, while the core layer showed a dramatical linear decrease. The dominant part was switched from the heterogeneous core layer to shell layer with high molecular orientation, which enables the production of nanofibers with superior properties.

Original languageEnglish
Pages (from-to)498-502
Number of pages5
JournalPolymer Testing
Volume70
DOIs
StatePublished - 09 2018
Externally publishedYes
Event2018 Society of Plastics Engineers Annual Technical Conference, ANTEC 2018 - Orlando, United States
Duration: 07 05 201810 05 2018

Bibliographical note

Publisher Copyright:
© 2018

Keywords

  • Core/shell structure
  • Electrospinning
  • Nanofiber
  • Polycarbonate

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