Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chae, Chang-Geun | ko |
dc.contributor.author | Bak, In-Gyu | ko |
dc.contributor.author | Lansac, Yves | ko |
dc.contributor.author | Samal, Shashadhar | ko |
dc.contributor.author | Jang, Yun Hee | ko |
dc.contributor.author | Lee, Jae-Suk | ko |
dc.date.accessioned | 2020-02-27T08:41:10Z | - |
dc.date.available | 2020-02-27T08:41:10Z | - |
dc.date.created | 2019-12-09 | - |
dc.date.issued | 2019-12 | - |
dc.identifier.citation | Macromolecules, v.52, no.23, pp.9354 - 9363 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/11384 | - |
dc.description.abstract | Access to protein-inspired polyisocyanates with high molecular weights (MWs) from anionic polymerization of isocyanates is challenging as it requires exceptional livingness. For this purpose, a dimerically self-associated sodium diphenylamide (NaDPA) was introduced as a robust chain-end-protective initiator in the anionic polymerization of n-hexyl isocyanate (HIC) in the absence or presence of sodium tetraphenylborate (NaBPh4) additive. At [NaDPA]0/[NaBPh4]0 = 5, unusual one-half initiation efficiency and one-half order of reaction kinetics were observed. Accordingly, initiator-transfer anionic polymerization (ITAP), a mechanism driven by the dimer of NaDPA ((NaDPA)2) in a dual role is proposed, in which one unimer initiates the polymerization and the other reversibly deactivates the propagating chain end through its repetitive cycles of 1:1 cross-association/dissociation. Living ITAP by NaDPA with NaBPh4 was proven by X-ray crystallography, density functional theory calculation, and quantitative yield of poly(n-hexyl isocyanate)s with an expanded range of controlled MWs (Mn = 6.09-47.8 kDa and Đ = 1.07-1.16). Copyright © 2019 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Living Initiator-Transfer Anionic Polymerization of Isocyanates by Sodium Diphenylamide | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.macromol.9b01523 | - |
dc.identifier.wosid | 000502688600028 | - |
dc.identifier.scopusid | 2-s2.0-85076426999 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Chae, Chang-Geun | - |
dc.contributor.nonIdAuthor | Bak, In-Gyu | - |
dc.contributor.nonIdAuthor | Samal, Shashadhar | - |
dc.contributor.nonIdAuthor | Lee, Jae-Suk | - |
dc.identifier.citationVolume | 52 | - |
dc.identifier.citationNumber | 23 | - |
dc.identifier.citationStartPage | 9354 | - |
dc.identifier.citationEndPage | 9363 | - |
dc.identifier.citationTitle | Macromolecules | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordPlus | N-HEXYL ISOCYANATE | - |
dc.subject.keywordPlus | POLY(N-HEXYL ISOCYANATE) | - |
dc.subject.keywordPlus | HELICAL POLYMER | - |
dc.subject.keywordPlus | BLOCK-COPOLYMER | - |
dc.subject.keywordPlus | MACROMOLECULAR STEREOCHEMISTRY | - |
dc.subject.keywordPlus | CONFORMATIONAL CHARACTERISTICS | - |
dc.subject.keywordPlus | CHIRAL POLYISOCYANATES | - |
dc.subject.keywordPlus | LIQUID-CRYSTAL | - |
dc.subject.keywordPlus | MAIN-CHAIN | - |
dc.subject.keywordPlus | SENSE | - |
dc.contributor.affiliatedAuthor | Jang, Yun Hee | - |
There are no files associated with this item.