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Author

Park, Soojin
Nano-Functional Materials Lab
Research Interests
  • Block Copolymers, nanostructured materials for Lithium-Ion batteries, wearable and stretchable energy storage applications

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A Simple Route for the Preparation of Mesoporous Nanostructures Using Block Copolymers

Cited 28 times inthomson ciCited 28 times inthomson ci
Title
A Simple Route for the Preparation of Mesoporous Nanostructures Using Block Copolymers
Author
Chen, DianPark, SoojinChen, Jiun-TaiRedston, EmilyRussell, Thomas P.
Keywords
4-vinylpyridine; Glass transition temperature; Inorganic oxides; Mesoporous; Mesoporous structure; Mesoporous structures; Micellar structures; Non-solvents; PS-b-P4VP; Sol-gel methods; TiO; Worm-like micelles
Issue Date
200909
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.3, no.9, pp.2827 - 2833
Abstract
Poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) nanostructures with multiple morphologies were fabricated by immersing PS-b-P4VP nanotubes in ethylene glycol, a nonsolvent for PS and a good solvent for P4VP, at different temperatures. Mesoporous structures were generated from uniform nanoscopic wormlike micelles due to a solvent-induced reconstruction when the spherical micellar structures were heated above the glass transition temperature of the PS block. The mesoporous nanostructures can be converted into inorganic oxide structures, like SiO(2) and TiO(2), by well-known sol-gel methods, The mesoporous inorganic oxides can be produced with tunable porosity by controlling the molecular weight of the block copolymers. Confinement also plays an important role to create the nanostructures with unusual morphologies.
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DOI
http://dx.doi.org/10.1021/nn900782k
ISSN
1936-0851
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