Anionic ring‐opening polymerization behavior of trans‐cyclohexene carbonate using metal tert‐butoxides: Construction of living anionic ring‐opening polymerization by lithium tert‐butoxide. Issue 8 (20th January 2022)

• Record Type: Journal Article
• Authors: Kawamoto, Masato; Mori, Yasuyuki; Tsuge, Akihiko; Endo, Takeshi
• Is Part Of: Journal of polymer science. Volume 60:Issue 8(2022)
• Page Start: 1416
• Page End: 1421
• Publication Date: 2022-01-20
• Subjects: anionic ring‐opening polymerization -- five‐membered cyclic carbonates -- living anionic ring‐opening polymerization -- metal tert‐butoxides -- poly(trans‐cyclohexene carbonate); Polymers -- Periodicals; Polymerization -- Periodicals; Polymerization; Polymers; Periodicals; 547.7
• DOI: 10.1002/pol.20210901
• Languages: English
• ISSNs: 2642-4150

Abstract

Abstract: Anionic ring‐opening polymerization (ROP) behavior of trans ‐cyclohexene carbonate (CHC) using metal alkoxides as initiators was investigated. As a result, lithium tert ‐butoxide‐initiated ROP of CHC with a high‐monomer concentration (10 M) at low temperature (−15 to −10°C) proceeded to afford a poly( trans ‐cyclohexene carbonate) (PCHC) without undesired side reactions such as mainly backbiting. The suppression of side reactions enables the control of the molecular weight ( M n = 2400–6100) of PCHC with low molar‐mass dispersity values ( M w / M n = 1.16–1.22). Furthermore, by increasing the feed ratio of the monomer to the initiator, the molecular weight increases proportionally, indicating a controllable polymerization. The results of a matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry analysis, a kinetic study, and a chain extension experiment suggested a living nature of this ROP using lithium tert ‐butoxide. Abstract :