Living Ring-Opening Polymerization of Lactones by N-Heterocyclic Olefin/Al(C6F5)3 Lewis Pairs: Structures of Intermediates, Kinetics, and Mechanism
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DOI: 10.1021/acs.macromol.6b02398
Abstract: The strong Lewis acid Al(C6F5)3, in combination with a strong Lewis base N-heterocyclic olefin (NHO), cooperatively promotes the living ring-opening (co)polymerization of lactones, represented by δ-valerolactone (δ-VL) and e-caprolactone (e-CL) in this study. Medium to… read more here.
Keywords: living ring; ring opening; polymerization; opening polymerization ... See more keywords
Control of Grafting Density and Distribution in Graft Polymers by Living Ring-Opening Metathesis Copolymerization.
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DOI: 10.1021/jacs.7b00791
Abstract: Control over polymer sequence and architecture is crucial to both understanding structure-property relationships and designing functional materials. In pursuit of these goals, we developed a new synthetic approach that enables facile manipulation of the density… read more here.
Keywords: grafting density; living ring; density; density distribution ... See more keywords
Synthesis of a ROS-responsive analogue of poly(ε-caprolactone) by the living ring-opening polymerization of 1,4-oxathiepan-7-one
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DOI: 10.1039/c8py00798e
Abstract: We report the synthesis of a poly(e-caprolactone) (PCL) analogue containing thioether groups in the main chain by living ring-opening polymerization (ROP) of 1,4-oxathiepan-7-one (OTO). OTO was synthesized by a one-pot two-step method, and the ROP… read more here.
Keywords: living ring; ring opening; polymerization; poto ... See more keywords
Living Ring-Opening Polymerization of O-Carboxyanhydrides: The Search for Catalysts
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DOI: 10.3389/fchem.2018.00641
Abstract: Biodegradable poly(α-hydroxy acids) can be synthesized by means of ring-opening polymerization (ROP) of O-carboxyanhydrides (OCAs). Numerous catalysts have been developed to control the living polymerization of OCAs. Here we review the rationale for the use… read more here.
Keywords: living ring; ring opening; polymerization; polymerization carboxyanhydrides ... See more keywords