Cationic living polymerization of cyclic dithiocarbonates involving sulfide-migration
Sign Up to like & getrecommendations! Published in 2021 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2021.110611
Abstract: Abstract Ring-opening polymerization of cyclic dithiocarbonates was attempted by varying reaction conditions (temperature, concentration, and solvents) to achieve a high polymer conversion. The participation of neighboring sulfide groups in the ring opening was demonstrated by… read more here.
Keywords: polymerization; sulfide migration; cyclic dithiocarbonates; polymerization cyclic ... See more keywords
Fast Living Polymerization of Challenging Aryl Isocyanides Using an Air-Stable Bisphosphine-Chelated Nickel(II) Initiator
Sign Up to like & getrecommendations! Published in 2018 at "Macromolecules"
DOI: 10.1021/acs.macromol.8b01090
Abstract: Here we report a highly efficient living polymerization of challenging electron-rich or sterically hindered aryl isocyanides using an air-stable, but highly active, bisphosphine-chelated nickel(II) complex. Initially, the living character was examined by screening various Ni(II)… read more here.
Keywords: aryl isocyanides; polymerization; isocyanides using; polymerization challenging ... See more keywords
Monodisperse Macromolecules by Self-Interrupted Living Polymerization.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.0c07912
Abstract: Biological macromolecules such as proteins and nucleic acids are monodisperse just like low molar mass organic compounds are. However, synthetic macromolecules contain mixtures of different chain length the most uniform being generated by living polymerizations… read more here.
Keywords: methodology; macromolecules self; interrupted living; self interrupted ... See more keywords
Customizing Polymers by Controlling Cation Switching Dynamics in Non-Living Polymerization.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c07098
Abstract: Controlling the chain growth process in non-living polymerization reactions is difficult because chain termination typically occurs faster than the time it takes to apply an external trigger. To overcome this limitation, we have developed a… read more here.
Keywords: non living; toluene diethyl; cation; polymerization ... See more keywords
Deciphering the Olefin Isomerization-Polymerization Paradox of Palladium(II) Diimine Catalysts: Discovery of Simultaneous and Independent Pathways of Olefin Isomerization and Living Polymerization.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c01513
Abstract: This work elucidates a long-standing unexplained paradox commonly observed within the polymerization of α-olefin using palladium (Pd)(II)-diimine catalysts, in which isomerization and living polymerization of α-olefins are both observed. With a classical mechanistic understanding of… read more here.
Keywords: olefin isomerization; diimine; isomerization; isomerization living ... See more keywords
Living Polymerization Caught in the Act: Direct Observation of an Arrested Intermediate in Metathesis Polymerization.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.9b04019
Abstract: Understanding the stability and reactivity of the propagating species is critical in living polymerization. Therefore, most living olefin metathesis polymerizations require the stabilization of the catalyst by coordination of external ligands containing Lewis basic heteroatoms,… read more here.
Keywords: metathesis polymerization; polymerization; olefin chelation; living polymerization ... See more keywords
Living Polymerization of 2-Ethylthio-2-oxazoline and Postpolymerization Diversification
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.9b06009
Abstract: The postpolymerization modification of polymers produced by living polymerization is an attractive method to create precision nanomaterials. We describe the living cationic ring-opening polymerization of a 2-alkylthio-2-oxazoline to furnish a polythiocarbamate. The polythiocarbamate is activated… read more here.
Keywords: polymerization; postpolymerization; ethylthio oxazoline; oxazoline postpolymerization ... See more keywords
Living Polymerization of Propylene with ansa-Dimethylsilylene(fluorenyl)(cumylamido) Titanium Complexes
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DOI: 10.3390/polym9040131
Abstract: A series of ansa-silylene(fluorenyl)(amido) titanium complexes (1a–1c, 2a, and 2b) bearing various substituents on the amido and fluorenyl ligands are synthesized and characterized by elemental analysis, 1H NMR, and single crystal X-ray analysis. The coordination… read more here.
Keywords: fluorenyl; polymerization; titanium; titanium complexes ... See more keywords