The enhanced encapsulation capacity of polyhedral oligomeric silsesquioxane-based copolymers for the fabrication of electrospun core/shell fibers

Adam J.P. Bauer, Tingying Zeng, Jianzhao Liu, Chananate Uthaisar, Bingbing Li

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

This paper reports the use of polyhedral oligomeric silsesquioxane (POSS)-based copolymers to stabilize the core/shell interface for the facile fabrication of electrospun core/shell fibers. For the poly[(propylmethacryl- heptaisobutyl-polyhedral oligomeric silsesquioxane)-co-(methyl methacrylate)] (POSS-MMA)/poly(ε-caprolactone) (PCL) system, the bicontinuity of hybrid core/shell fibers can be tuned by controlling the phase separation of POSS-MMA/PCL in electrospinning solutions and therefore the size of PCL-in-POSS-MMA emulsion droplets. Our results demonstrate the enhanced encapsulation capacity of POSS-MMA copolymers as shell materials. Taking advantage of the rapid advancement of POSS-based copolymer synthesis, this study can potentially be generalized to guide the fabrication of various other POSS-based core/shell nano-/microstructures by using single-nozzle electrospinning or coaxial electrospinning.

Original languageEnglish
Pages (from-to)715-720
Number of pages6
JournalMacromolecular Rapid Communications
Volume35
Issue number7
DOIs
StatePublished - Apr 2014

Keywords

  • POSS-based copolymers
  • core/shell fibers
  • electrospinning
  • poly(ε-caprolactone) (PCL)

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