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Updated: Jun 18, 2026

Manufacturing of Three-dimensionally Microstructured Nanocomposites through Microfluidic Infiltration
Published on: March 12, 2014
Molecular rotor dynamics influenced by the elastic modulus of polyethylene nanocomposites
Ah-Young Jee1, Haneul Kwon, Minyung Lee
1Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 120-750, Republic of Korea.
Abstract:
We observed that the excited-state twisting motion of 3,3(')-diethyloxacarbocyanine in polymer nanocomposites (PNCs) depends strongly on the elastic modulus of medium. PNCs consist of low density polyethylene dispersed with surface-functionalized nanodiamonds with various alkyl groups. The mechanical properties of the PNCs were measured by a nanoindentation method, and the photoisomerization processes of the cyanine dye doped in the composites were investigated by time-resolved fluorescence spectroscopy. It was found that the molecular rotor dynamics in rigid media should be quantitatively describable by the elastic modulus of polymer.
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