Journal Article10.1021/ACS.MACROMOL.1C01356
Tris(2,4-difluorophenyl)borane/Triisobutylphosphine Lewis Pair: A Thermostable and Air/Moisture-Tolerant Organic Catalyst for the Living Polymerization of Acrylates
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About: This article is published in Macromolecules. The article was published on 28 Sep 2021. The article focuses on the topics: Borane & Living polymerization.
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Citations
Exploration of the Synergistic Effect in a One-Component Lewis Pair System: Serving as a Dual Initiator and Catalyst in the Ring-Opening Polymerization of Epoxides
TL;DR: In this article , a one-component Lewis pair strategy was adopted, and two delicate Lewis pairs 1−2 were rationally designed and conveniently synthesized, which exhibited activity (turnover frequency = 3600 h−1) with a living characteristic and low catalyst feeding (0.003 mol %) and afforded an extremely high-molecular-weight α-halide/ω-OH polypropylene oxide (PPO, Mn = 489.5 kg/mol) under mild conditions (−30 to 0 °C).
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Organoboron-mediated polymerizations
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16
Phosphine-Borane Frustrated Lewis Pairs for Metal-Free CO2/Epoxide Copolymerization
TL;DR: In this article , the frustrated Lewis pair (FLP) composed of commercial tertiary phosphine and trialkylborane was used to catalyze the copolymerization of CO2 and propylene oxide (PO).
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Preparation of Block Copolymers by a Sequential Transesterification Strategy: A Feasible Route for Upcycling End-of-Life Polyester Plastics to Elastomers
TL;DR: Researchers developed a sequential transesterification strategy to synthesize block copolymers, such as PLA-PCL-PLA triblock copolymers, by exploiting differences in transesterification rates between polymers, enabling chemical upcycling of end-of-life polyester plastics into elastomers.
9
Arbitrarily-Regulated Monomer Sequence in Multi-Block Copolymers Synthesis by Frustrated Lewis Pairs.
Yi Wan,Jianping He,Yuetao Zhang +2 more
TL;DR: In this paper , a Lewis pair composed of organophosphorus superbase and bulky organoaluminum was employed to copolymerize the mixture of methacrylate, cyclic acrylate and two acrylates into well-defined di-, tri-, tetra- and even a hepta-BCP in one-pot one-step manner.
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References
Frustrated Lewis pair chemistry: development and perspectives.
Douglas W. Stephan,Gerhard Erker +1 more
TL;DR: The current state of this young but rapidly expanding field is outlined in this Review and the future directions for its broadening sphere of impact are considered.
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Organocatalytic ring-opening polymerization.
Nahrain E. Kamber,and Wonhee Jeong,Robert M. Waymouth,Russell C. Pratt,and Bas G. G. Lohmeijer,James L. Hedrick +5 more
TL;DR: This paper presents the design of highly efficient families of “living” polymerization strategies for the synthesis of block, graft, and star polymers through controlled methods for the controlled synthesis of dendritic macromolecules.
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The broadening reach of frustrated Lewis pair chemistry
TL;DR: The surprising chemistry of so-called frustrated Lewis pairs (FLPs), which cannot form their natural complex together are reviewed, as well as efforts to extend this concept to asymmetric hydrogenations and its application to various chemical systems.
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Organocatalysis: Opportunities and Challenges for Polymer Synthesis
TL;DR: In this article, the ring-opening polymerization of cyclic monomers is used as a representative polymerization process to illustrate some of the features of organic catalysts and initiators and compare them to metal-based approaches.
835
Lewis Acid Properties of Tris(pentafluorophenyl)borane. Structure and Bonding in L−B(C6F5)3 Complexes⊥
Heiko Jacobsen,Heinz Berke,Steve Döring,Gerald Kehr,Gerhard Erker,Roland Fröhlich† and,Oliver Meyer +6 more
TL;DR: In this article, a variety of donor adducts of tris(pentafluorophenyl)borane were experimentally generated by reaction of a Lewis base with an excess of B(C6F5)3 in pentane.
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