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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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Redox-switchable olefin cross metathesis (CM) reactions and acyclic diene metathesis (ADMET) polymerizations

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Title
Redox-switchable olefin cross metathesis (CM) reactions and acyclic diene metathesis (ADMET) polymerizations
Author(s)
Yeonkyeong Ryu; Shao, HL; Guillermo Ahumada; Liu, P; Christopher W. Bielawski
Publication Date
2019-10
Journal
MATERIALS CHEMISTRY FRONTIERS, v.3, no.10, pp.2083 - 2089
Publisher
ROYAL SOC CHEMISTRY
Abstract
We show that redox-switchable catalysis may be used to control acyclic diene metathesis (ADMET) polymerizations and related reactions. A Ru(ii) complex was found to display catalytic activities that were dependent on the oxidation state of a quinone-containing ligand. While the neutral form of the complex was found to catalyze ADMET polymerizations at rates that were commensurate with a commercially-available catalyst, significantly lower activities were observed when the complex was reduced. Using the rate differential, a series of ADMET polymerizations were modulated by alternately reducing and oxidizing the catalyst over time. A similar approach was also used to regulate the molecular weights of the polymers produced. Cross metathesis reactions and computational studies were performed in parallel to gain a deeper understanding of the underlying redox-switchable chemistry. ©The Royal Society of Chemistry and the Chinese Chemical Society 2019
URI
https://pr.ibs.re.kr/handle/8788114/6416
ISSN
2052-1537
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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