Mechanically atom transfer radical polymerization (mechanoATRP) was successfully performed in ultrasound bath with low ppm copper catalyst. Polymerization of methyl acrylate in the presence of CuBr<sub>2</sub>/tris(2-pyridylmethyl)amine catalyst using ultrasound as external stimulus was well controlled. The kinetics of the polymerization followed an almost linear semilogarithmic plot of monomer consumption versus ultrasound agitation. The experimental molecular weights agreed well with the theoretical values with narrow molecular weight distribution. The effect of various types of barium titanate nanoparticles, loadings of nanoparticles and targeted degrees of polymerization were investigated. The polymerization can be temporarily controlled through the switchable on-off ultrasound agitation.

Mechanically switchable atom transfer radical polymerization using low ppm of catalyst

254th National Meeting (2017)

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