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Electrospun Nanocomposite Nanofibres With Magnetic Nanoparticle Decorated Carbon Nanotubes
Author(s) -
van Deventer Nedine,
Mallon Peter E.
Publication year - 2018
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201600140
Subject(s) - materials science , nanocomposite , carbon nanotube , nanoparticle , electrospinning , magnetic nanoparticles , polymer , chemical engineering , nanomaterials , composite number , dimethylformamide , polymer chemistry , in situ , composite material , nanotechnology , solvent , organic chemistry , chemistry , engineering
Oxidized multi‐wall carbon nanotubes (MWCNTs) are decorated with iron oxide (Fe 3 O 4 ) nanoparticles using an ex situ and simpler single‐step in situ approach (synthesis of ex situ and in situ MWCNT‐Fe 3 O 4 ). The polar carboxylic acid moieties present on the MWCNT backbone, as a result of oxidation, acted as anchoring sites through which the nanoparticles could be attached. The remaining carboxylic acid moieties present on the backbone facilitated dissolution in polar solvents (such as dimethylformamide (DMF)); which allowed for incorporation of the respective MWCNT‐Fe 3 O 4 samples as filler nanomaterials into nanofibres using the electrospinning technique. Excellent dispersion and alignment of the respective MWCNT‐Fe 3 O 4 samples along the poly(methyl methacrylate) (PMMA) electrospun nanofibre axis were obtained. Highest values for magnetization were exhibited by the electrospun composite nanofibres containing ex situ synthesized MWCNT‐Fe 3 O 4 ; where these composites are proposed for use in SMART polymer applications such as tissue scaffolds or magnetic filters.