Preparation of poly(ε-caprolactone)-based polyurethane nanofibers containing silver nanoparticles

Hyun Jeong Jeon, Jin Sook Kim, Tae Gon Kim, Jung-Hyun Kim, Woong Ryeol Yu, Ji Ho Youk

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

In this study, poly(ε-caprolactone)-based polyurethane (PCL-PU) nanofibers containing Ag nanoparticles for use in antimicrobial nanofilter applications were prepared by electrospinning 8 wt% PCL-PU solutions containing different amounts of AgNO3 in a mixed solvent consisting of DMF/THF (7/3 w/w). The average diameter of the pure PCL-PU nanofibers was 560 nm and decreased with increasing concentration of AgNO3. The PCL-PU nanofiber mats electrospun with AgNO3 exhibited higher tensile strength, tensile modulus, and lower elongation than the pure PCL-PU nanofiber mats. Small Ag nanoparticles were produced by the reduction of Ag+ ions in the PCL-PU solutions. The average size and number of the Ag nanoparticles in the PCL-PU nanofibers were considerably increased after being annealed at 100 °C for 24 h. They were all sphere-shaped and evenly distributed in the PCL-PU nanofibers, indicating that the PCL-PU chains stabilized the Ag nanoparticles well.

Original languageEnglish
Pages (from-to)5886-5890
Number of pages5
JournalApplied Surface Science
Volume254
Issue number18
DOIs
Publication statusPublished - 2008 Jul 15

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this