Catalytic Living Ring Opening Metathesis Polymerisation: The Importance of Ring Strain in Chain Transfer Agents
作者:Peng Liu、Mohammad Yasir、Andreas F. M. Kilbinger
DOI:10.1002/anie.201907921
日期:2019.10.21
A recently developed catalytic living ring opening metathesis polymerisation (ROMP) was investigated using a series of reversible chain transfer agents (CTA) carrying either cyclopentene or cyclohexene rings, differing only in ring strain. All cyclopentene derivatives examined showed significantly faster reaction rates than the corresponding cyclohexene derivatives. This resulted in lower molecular
One‐Step Ring Opening Metathesis Block‐Like Copolymers and their Compositional Analysis by a Novel Retardation Technique
作者:Mohammad Yasir、Peng Liu、Jens C. Markwart、Oksana Suraeva、Frederik R. Wurm、Jansie Smart、Marco Lattuada、Andreas F. M. Kilbinger
DOI:10.1002/anie.202005366
日期:2020.8.3
synthesized using G3 by first allowing the consumption of the mixture of M1 and M2 and then adding M1 again. In addition, in order to measure the fast reaction rates of the G3 catalyst with M1 , we report a novel retardation technique based on an unusual reversible G3 Fischer‐carbene to G3 benzylidene/alkylidene transformation.