Výsledky vyhledávání - "Jong-Chan Sung"

Cascade Cyclopolymerization of 5-Ethynyl-1,8-Nonadiyne Derivatives to Synthesize Low Band Gap Conjugated Polyacetylenes Containing a Fused Bicyclic Structure

Autor: Hanseul Ryu, Jong‐Chan Sung, Gangme Kim, Yan Xu, Robert H. Grubbs, Tae‐Lim Choi

Publikováno v: Angewandte Chemie (International ed. in English). 61(45)

Cyclopolymerization is a powerful method for synthesizing polyacetylenes containing four- to seven-membered rings. However, the structure of the repeat unit only consists of mono-cycloalkene due to the single cyclization of diyne monomers. Herein, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10e358ec1a6912b18368a220c500ce8b
https://pubmed.ncbi.nlm.nih.gov/36066917

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Ru-Catalyzed, cis-Selective Living Ring-Opening Metathesis Polymerization of Various Monomers, Including a Dendronized Macromonomer, and Implications to Enhanced Shear Stability

Autor: Tae-Lim Choi, Robert H. Grubbs, Jong-Chan Sung, Ki-Taek Bang, Jung-Ah Song, Tonia S. Ahmed, Gregory I. Peterson

Publikováno v: Journal of the American Chemical Society. 142:10438-10445

An unsaturated polymer's cis/trans-olefin content has a significant influence on its properties. For polymers obtained by ring-opening metathesis polymerization (ROMP), the cis/trans-olefin content can be tuned by using specific catalysts. However, c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f57d515d0bfba12f773bc82757fc5dd
https://doi.org/10.1021/jacs.0c02785

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Ru-Catalyzed

Autor: Jung-Ah, Song, Gregory I, Peterson, Ki-Taek, Bang, Tonia S, Ahmed, Jong-Chan, Sung, Robert H, Grubbs, Tae-Lim, Choi

Publikováno v: Journal of the American Chemical Society. 142(23)

An unsaturated polymer's

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::28466e03c546d4dee6ce0144502867ce
https://pubmed.ncbi.nlm.nih.gov/32392047

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Toward Perfect Regiocontrol for β-Selective Cyclopolymerization Using a Ru-Based Olefin Metathesis Catalyst

Autor: Tonia S. Ahmed, Kijung Jung, Kunsoon Kim, Jong-Chan Sung, Soon Hyeok Hong, Robert H. Grubbs, Tae-Lim Choi

Publikováno v: Macromolecules. 51:4564-4571

Ru-based metathesis catalysts employed in cyclopolymerization (CP) of 1,6-heptadiyne derivatives have promoted regioselective α-addition to alkynes, forming various conjugated polyenes containing exclusively five-membered repeat units. Recently, we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21773ce763f7510b6aebaeee43c09560
https://doi.org/10.1021/acs.macromol.8b00969

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Living β-selective cyclopolymerization using Ru dithiolate catalysts

Autor: Kijung Jung, Hyeyun Keum, Tonia S. Ahmed, Robert H. Grubbs, Tae-Lim Choi, Jaeho Lee, Jong-Chan Sung

Publikováno v: Chemical Science
Chemical Science, 10 (39)

Cyclopolymerization (CP) of 1,6-heptadiyne derivatives is a powerful method for synthesizing conjugated polyenes containing five- or six-membered rings via α- or β-addition, respectively. Fifteen years of studies on CP have revealed that user-frien

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f72cedadebd1f4543b7f3b697bdc1a3
https://pubmed.ncbi.nlm.nih.gov/31762976

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