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Study Results from Sogang University Update Understanding of Macromolecule Research (Aspect-Ratio Effect of Nanorod Compatibilizers in Conducting...

July 4, 2014

Study Results from Sogang University Update Understanding of Macromolecule Research (Aspect-Ratio Effect of Nanorod Compatibilizers in Conducting Polymer Blends)

By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Macromolecule Research are presented in a new report. According to news reporting originating in Seoul, South Korea, by NewsRx journalists, research stated, "Nanoparticles (NPs) at the interface between two different polymer blends or fluid mixtures can function as compatibilizers, thereby dramatically improving the interfacial properties of the blends or the fluid mixtures. Their compatibilizing ability is strongly dependent on their size, shape, and aspect ratios (ARs), which determines their adsorption energy to the interface as well as their entropic penalty when they are being strongly segregated at the interface."

The news reporters obtained a quote from the research from Sogang University, "Herein, we investigated the effect of the ARs of nanorod surfactants on the conducting polymer blend of poly(triphenylamine) (PTPA) templated by polystyrene (PS) colloids. The lengths of the polymer-coated CuPt nanorods (CuPt NRs) were 5, 15, and 32 nm with a fixed width of 5 nm, thus producing three different AR values of 1, 3, and 6, respectively. For quantitative analysis, the morphological and electrical behaviors of the polymer blends were investigated in terms of the volume fraction and AR of the NRs. The dramatic change in the morphological and electrical properties of the blend film was observed for all three NR surfactants at the NR volume fraction of approximately 1 vol %. Therefore, NR surfactants with larger ARs had better compatibilizing power for a given number of NRs in the blends. Also, they exhibited a stronger tendency to be aligned parallel to the PS/PTPA interface. Also, we demonstrated the successful use of the NR surfactants in the fabrication of conducting polymer blend film that requires only minimal concentrations of conducting polymers."

According to the news reporters, the research concluded: "To the best of our knowledge, this is the first report of an experiment on the AR effect of NR compatibilizers in polymer blends."

For more information on this research see: Aspect-Ratio Effect of Nanorod Compatibilizers in Conducting Polymer Blends. ACS Macro Letters, 2014;3(5):398-404. ACS Macro Letters can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; ACS Macro Letters -

Our news correspondents report that additional information may be obtained by contacting T. Kwon, Sogang Univ, Dept. of Chem & Biomol Engn, Seoul 121742, South Korea. Additional authors for this research include K.H. Ku, D.J. Kang, W.B. Lee and B.J. Kim (see also Macromolecule Research).

Keywords for this news article include: Asia, Seoul, South Korea, Macromolecule Research

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Source: Science Letter

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