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Magnetic array-templated method for fabrication of polymer nanoporous films

Ng, Jarryd Keng Gene; Rybchenko, Sergey I; Lukaschuk, Sergei

Authors

Jarryd Keng Gene Ng

Sergei Lukaschuk



Abstract

This paper describes the development of a novel method of producing nanoporous polymeric membranes in a cost-effective and reproducible manner. The novelty of the technique hinges on the exploitation of a new type of sacrificial material & structures - self-assembled arrays of magnetic nanoparticles. The arrays are obtained through application of an external magnetic field to a thin layer of colloidal solution of superparamagnetic nanoparticles in a polymerizable monomer; this is followed by photopolymerisation. The resulting columnar structures form the pore templates which when selectively etched away leave an array of nanopores spanning across the polymeric film. The morphological characterisation of the nanopores by scanning electron microscopy and ionic conductivity revealed a very unusual sponge-like pore morphology. The applications which would benefit from the specific pore morphology and arrayed manufacturing are discussed.

Journal Article Type Article
Publication Date Jun 9, 2020
Journal Nano Express
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 1
Issue 1
Pages 010044
APA6 Citation Ng, J. K. G., Rybchenko, S. I., & Lukaschuk, S. (2020). Magnetic array-templated method for fabrication of polymer nanoporous films. Nano Express, 1(1), 010044. https://doi.org/10.1088/2632-959x/ab970b
DOI https://doi.org/10.1088/2632-959x/ab970b
Keywords Colloidal particles; Directed self-assembly; Nano-patterning; Nanopores; Polymer membranes; Ionic conductivity
Publisher URL https://iopscience.iop.org/article/10.1088/2632-959X/ab970b

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