BROWSE

Related Researcher

Author

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

ITEM VIEW & DOWNLOAD

Highly Ordered Nanoporous Template from Triblock Copolymer

Cited 19 times inthomson ciCited 17 times inthomson ci
Title
Highly Ordered Nanoporous Template from Triblock Copolymer
Author
Lee, Dong HyunPark, SoojinGu, WeiyinRussell, Thomas P.
Keywords
Capillary action; Core shell structure; Etching masks; highly ordered nanostructure; Metal loadings; Mixed solvent; Nanoporous silica; Nanoporous templates; Outer shells; Oxygen plasmas; Poly(2-vinyl pyridine); Polydimethylsiloxane PDMS; triblock copolymer; Triblock copolymers; Type structures; UV-ozone treatment
Issue Date
201102
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.5, no.2, pp.1207 - 1214
Abstract
Silica nanoporous templates from poly(1,4-isoprene)-b/ock-polystyrene-block-poly-(2-vinyl pyridine) (IS2VP) were prepared. The films of IS2VP spin-coated from toluene showed a dimple-type structure with short-range lateral order. When the films were exposed to a mixed solvent vapor of toluene/hexane, a highly ordered and oriented core-shell structure, consisting of an outer shell of PI, a middle shell of PS, and a core of P2VP, was obtained. The PI was degraded by UV-ozone treatment and removed. A film of polydimethylsiloxane (PDMS) was spin coated onto the remaining film with dimple-type structures and, upon heating, was drawn Into the interstitial regions by capillary action. Exposure to oxygen plasma converted the PDMS into silica and degraded all other remaining polymers. This led to highly ordered and oriented nanoporous silica that could be used as an etching mask for transfer of the pattern or templates for metal loading.
URI
Go to Link
DOI
http://dx.doi.org/10.1021/nn102832c
ISSN
1936-0851
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU