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New Macromolecular Research Findings from National Institute of Standards and Technology Reported (Response of Block Copolymer Thin-Film Morphology...

August 29, 2014



New Macromolecular Research Findings from National Institute of Standards and Technology Reported (Response of Block Copolymer Thin-Film Morphology to Line-Width Roughness on a Chemoepitaxial Template)

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Macromolecular Research. According to news reporting from Gaithersburg, Maryland, by NewsRx journalists, research stated, "Using the Leibler-Ohta-Kawasaki (LOK) phase-field model of block copolymers (BCPs), we characterize how line-width roughness (LWR) in the chemoepitaxial template affects the BCP microdomain shape."

The news correspondents obtained a quote from the research from the National Institute of Standards and Technology, "Specifically, we derive formulas for the monomer density and the microdomain interface profile of periodic, lamellar BCP melts whose template lines widths oscillate with frequency k. The key idea behind our approach is to identify variations in the microdomain interface positions (relative to their averages) as corresponding to a local excess of one of the monomer types."

According to the news reporters, the research concluded: "For lamellar systems, our analysis (i) shows that the BCP morphology arises from the constraint that the total mass in a microdomain is fixed, independent of LWR, and (ii) determines a length scale A over which template LWR affects the polymer melt."

For more information on this research see: Response of Block Copolymer Thin-Film Morphology to Line-Width Roughness on a Chemoepitaxial Template. Macromolecules, 2014;47(14):4824-4829. Macromolecules can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Macromolecules - www.pubs.acs.org/journal/mamobx)

Our news journalists report that additional information may be obtained by contacting P.N. Patrone, NIST, Center Nanoscale Sci & Technol, Gaithersburg, MD 20899, United States (see also Macromolecular Research).

Keywords for this news article include: Maryland, Gaithersburg, United States, Macromolecular Research, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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