Effect of hyperbranched surface-migrating additives on the electrospinning behavior of poly(methyl methacrylate)

Matthew T. Hunley, Adam Harber, Joshua A. Orlicki, Adam M. Rawlett, Timothy E. Long

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Poly(methyl methacrylate) (PMMA) was electrospun in the presence of a low molecular weight, hyperbranched polyethylene imine) additive partially functionalized with perfluorinated and aliphatic end-groups (Mn ∼ 1600 g/mol). The additive exhibited surface segregation with an insignificant influence on the rheological behavior of PMMA solutions. A morphological transition from beaded electrospun fibers to uniform fibers was observed upon introduction of additive at low PMMA concentrations. XPS revealed a surface enrichment of fluorine and nitrogen, which are both present in the hyperbranched additive. Surface fluorine content depended primarily on the amount of additive in solution, and a dependency on the PMMA/additive weight ratio was not observed.

Original languageEnglish (US)
Pages (from-to)654-657
Number of pages4
JournalLangmuir
Volume24
Issue number3
DOIs
StatePublished - Feb 5 2008
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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