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Pendant carboxyl groups were introduced into donor–acceptor polyfluorene carrying benzothiadiazole as an acceptor moiety. The emission color from its solution was different depending on the solvent. While the methanol solution of the polymer exhibited blue emission, yellow emission was observed from its tetrahydrofuran solution. Influence of solvent polarity, solution concentration, temperature, and...
A well‐defined poly(ε‐caprolactone) (PCL) with terminal azido group was prepared. Grafting‐on reaction between the azido‐terminated PCL (N3PCL) and ultrasonication‐assisted exfoliated graphene flakes (GF) was carried out to obtain PCL‐grafted‐GF (PCL‐g‐GF) which showed good dispersibility in a wide variety of organic solvents. Gel permeation chromatography, 1H NMR, IR, Raman, UV‐vis, and TEM measurements...
The dismantling robot with highly accurate positioning was developed and the robot must cut the plasterboard that is fixed to light gauge steel with the screw bolt under the plasterboard, so the sensor with magnets to detect and trace the light gauge steel was designed. The developed sensing method has detecting mode and tracing mode to keep high position accuracy and high scanning speed. It is installed...
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