Abstract
A facile method based on recyclable nanoscale zero-valent iron (nZVI)-mediated photoRDRP in ionic liquid led to synthesis of narrow disperse poly(2-(dimethylamino)ethyl methacrylate) and poly(2-(dimethylamino)ethyl methacrylate)-block-poly(4-vinylphenylboronic acid) (PDMAEMA-b-PVPBA) diblock copolymers thereof. Stimuli response of the PDMAEMA-b-PVPBA copolymer against changes in pH, temperature and sugar concentration is assessed. Recyclability of the nZVI (catalyst) and ionic liquid (solvent) is established. Polymerization can be shut down or turned on simply by turning off or on the UV-A irradiation. This temporal control of the polymerization might be useful for wide use of the developed protocol for spatiotemporal “ON/OFF” control. DFT calculations are performed to get the geometry of the involved species.
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