Rapid synthesis of block and cyclic copolymers via click chemistry in the presence of copper nanoparticles

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A new method for the rapid and efficient coupling of homopolymers to yield diblock and triblock copolymers as well as cyclic polymers using the 3 + 2 π Huisgen copper catalyzed cycloaddition reaction has been developed. This facile method utilizes commercially available Cu nanoparticles that are tolerant to O2, easily removable and recyclable.