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Development of nanodomain and fractal morphologies in solvent annealed block copolymer thin films

Title
Development of nanodomain and fractal morphologies in solvent annealed block copolymer thin films
Authors
Peng J.Han Y.Knoll W.Kim D.H.
Ewha Authors
김동하
SCOPUS Author ID
김동하scopus
Issue Date
2007
Journal Title
Macromolecular Rapid Communications
ISSN
1022-1336JCR Link
Citation
vol. 28, no. 13, pp. 1422 - 1428
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We have systematically studied the thin film morphologies of asymmetric polystyrene-block-poly(ethylene oxide) (PS-b-PEO) diblock copolymer subjected to solvent vapors of varying selectivity for the constituent blocks. Upon a short treatment in neutral or PS-selective vapor, the film exhibited a nignly ordered array of hexagonally packed, cylindrical microdomains. In the case of PEO selective vapor annealing, such ordered cylindrical microdomains were not obtained. Instead, fractal patterns on the microscale were observed and their growth processes investigated. Furthermore, hierarchical structures could be obtained if the fractal pattern was exposed to neutral or PS selective vapor. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
DOI
10.1002/marc.200700206
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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