Heterogeneously Catalyzed Fenton-Reversible Addition-Fragmentation Chain Transfer Polymerization in the Presence of Air
- Publisher:
- AMER CHEMICAL SOC
- Publication Type:
- Journal Article
- Citation:
- Macromolecules, 2019, 52, (9), pp. 3278-3287
- Issue Date:
- 2019-05-14
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Heterogeneously Catalyzed Fenton-Reversible Addition-Fragmentation Chain Transfer Polymerization in the Presence of Air.pdf | 2.91 MB |
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© 2019 American Chemical Society. Aqueous Fenton-reversible addition-fragmentation chain transfer (RAFT) polymerization catalyzed by heterogeneous catalysts, that is, Fe(II) metal-organic framework (MOF) particles, coupled with hydrogen peroxide (H2O2) with the reaction mixture exposed to air in open vessels is reported. Reactive hydroxyl radicals are generated via a heterogeneous redox reaction between Fe(II) of the MOF particles and H2O2, which then chemically deoxygenate the reaction mixture in situ, initiating RAFT polymerization. Well-controlled polymers (Ä < 1.1) with experimental molecular weights close to theoretical values at high monomer conversions (ca. 85%) were achieved within 15 min. High "livingness" of the synthesized polymer chains was demonstrated by chain extension experiments and matrix-assisted laser desorption/ionization time-of-flight analysis. This study contributes to the growing interest in nonenzymatic deoxygenation techniques via heterogeneous catalysis for conducting radical polymerization reactions.
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