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One-Pot Synthesis of Star Copolymers by the Combination of Metal-Free ATRP and ROP Processes

Department of Chemistry, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
Polymers 2019, 11(10), 1577; https://doi.org/10.3390/polym11101577
Received: 3 September 2019 / Revised: 20 September 2019 / Accepted: 24 September 2019 / Published: 27 September 2019
(This article belongs to the Section Polymer Synthesis)
A completely metal-free strategy is demonstrated for the preparation of star copolymers by combining atom transfer radical polymerization (ATRP) and ring-opening polymerization (ROP) for the syntheses of block copolymers. These two different metal-free controlled/living polymerizations are simultaneously realized in one reaction medium in an orthogonal manner. For this purpose, a specific core with functional groups capable of initiating both polymerization types is synthesized. Next, vinyl and lactone monomers are simultaneously polymerized under visible light irradiation using specific catalysts. Spectral and chromatographic evidence demonstrates the success of the strategy as star copolymers are synthesized with controlled molecular weights and narrow distributions. View Full-Text
Keywords: photochemical processes; metal-free polymerization; controlled/living radical polymerization; atom transfer radical polymerization; ring-opening polymerization photochemical processes; metal-free polymerization; controlled/living radical polymerization; atom transfer radical polymerization; ring-opening polymerization
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MDPI and ACS Style

Yilmaz, G. One-Pot Synthesis of Star Copolymers by the Combination of Metal-Free ATRP and ROP Processes. Polymers 2019, 11, 1577.

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