Nanodomain Development of Semifluorinated Diblock Copolymeric Thin Films via Solvent Vapor Annealing

Authors: Islam, Mohammad Tariqul; Gal, Yeong Soon; Park, Jong Myung; Lim, Kwon Taek

Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 5, May 2011 , pp. 4506-4510(5)

Publisher: American Scientific Publishers

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Abstract:

The effect of solvent vapor annealing on the morphological change of poly(ethylene oxide)-b-poly(1H,1H dihydrofluorooctyl methacrylate) (PEO-b-PFOMA) micellar thin films has been studied. The time development of the nanodomain structure in PEO_5k-b-PFOMA_10k thin films was investigated with the vapor treatment of perfluoroalkanes. The block copolymeric thin film was initially cast from chloroform which is a good solvent for PEO. The as-cast film which has disordered morphology can be changed to ordered cylindrical morphology and at last to highly ordered morphology consisting of PEO spherical domains and PFOMA continuous phase by varying the annealing time.

Keywords: SEMIFLUORINATED BLOCK COPOLYMER; SELF-ASSEMBLY; THIN FILM; SOLVENT VAPOR ANNEALING

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2011.3628

Publication date: 2011-05-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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