Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hyun, Min Jeong | - |
dc.contributor.author | Shin, Mi | - |
dc.contributor.author | Kim, Yong Jin | - |
dc.contributor.author | Suh, Young-Woong | - |
dc.date.accessioned | 2022-07-15T19:20:22Z | - |
dc.date.available | 2022-07-15T19:20:22Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-01 | - |
dc.identifier.issn | 0922-6168 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/155336 | - |
dc.description.abstract | In catalytic decomposition of dimethylhexane-1,6-dicarbamate (HDC) into hexamethylene-1,6-diisocyanate (HDI), Zn-containing homogeneous (i.e., zinc acetate) and heterogeneous (i.e., ZnO) catalysts were active among a number of catalysts tested, due to the great electron withdrawing ability of Zn ions. Particularly, when polyethylene glycol dimethyl ether was used as a solvent, ZnO was found to be relatively robust, because the catalytic performance was maintained up to the third use (HDC conversion of 93 % and HDI yield of 67 % at 180 A degrees C for 1 h). Through investigation of a HDC/ZnO mixture at elevated temperatures by IR spectroscopy, a possible reaction scheme of ZnO-catalyzed decomposition of HDC was proposed. The H atom is removed from the N-H group of HDC by hydrogen bonding with an O site on the ZnO surface, followed by coordination of an O-C=O group in monodentate mode to a Zn site. The C-O group in the O-C=O linkage is then cleaved yielding the isocyanate and surface methoxide species. Finally, methanol is released from ZnO by a reaction between the surface methoxide and the hydroxyl species. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | SPRINGER | - |
dc.title | Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Suh, Young-Woong | - |
dc.identifier.doi | 10.1007/s11164-015-2224-x | - |
dc.identifier.scopusid | 2-s2.0-84958037897 | - |
dc.identifier.wosid | 000370163300006 | - |
dc.identifier.bibliographicCitation | RESEARCH ON CHEMICAL INTERMEDIATES, v.42, no.1, pp.57 - 70 | - |
dc.relation.isPartOf | RESEARCH ON CHEMICAL INTERMEDIATES | - |
dc.citation.title | RESEARCH ON CHEMICAL INTERMEDIATES | - |
dc.citation.volume | 42 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 57 | - |
dc.citation.endPage | 70 | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | INCORPORATED BERLINITE ZNALPO4 | - |
dc.subject.keywordPlus | N-PHENYL CARBAMATE | - |
dc.subject.keywordPlus | DIMETHYL CARBONATE | - |
dc.subject.keywordPlus | CATALYTIC DECOMPOSITION | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | METHOXYCARBONYLATION | - |
dc.subject.keywordPlus | IDENTIFICATION | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | MDI | - |
dc.subject.keywordAuthor | Catalytic decomposition | - |
dc.subject.keywordAuthor | Hexamethylene-1,6-diisocyanate | - |
dc.subject.keywordAuthor | Dimethylhexane-1,6-dicarbamate | - |
dc.subject.keywordAuthor | ZnO | - |
dc.identifier.url | https://link.springer.com/article/10.1007/s11164-015-2224-x | - |
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