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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 8359 | - |
dc.citation.number | 23 | - |
dc.citation.startPage | 8355 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.volume | 21 | - |
dc.contributor.author | Wiggins, Kelly M. | - |
dc.contributor.author | Hudnall, Todd W. | - |
dc.contributor.author | Tennyson, Andrew G. | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.date.accessioned | 2023-12-22T06:37:45Z | - |
dc.date.available | 2023-12-22T06:37:45Z | - |
dc.date.created | 2020-07-13 | - |
dc.date.issued | 2011 | - |
dc.description.abstract | Coupling two pyridine-capped poly(methyl acrylate) (PMA) chains of varying molecular weights to bis(pentafluorophenyl) boron chloride afforded the first examples of boronium-based polymers. Ultrasonication of CH3CN solutions of these polymers with number average molecular weights (M-n) > 40 kDa induced selective scission of a boron-pyridine bond, affording a two-fold reduction in M-n. The liberated pyridine was used to effect a colorimetric change, via a stoichiometric Bronsted acid-base reaction with an indicator, and to catalyze the polymerization of alpha-trifluoromethyl-2,2,2-trifluoroethyl acrylate. No reduction in M-n, colorimetric response, or polymerization activity were observed (i) in the absence of sonication, (ii) for polymers with M-n < 40 kDa, (iii) for a high molecular weight PMA (Mn 110 kDa) containing a terminal boronium species, or (iv) when the boron-pyridine adduct was not covalently linked to a PMA chain. Collectively, these results support the notion that the aforementioned scission processes were induced by an applied mechanical force. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY, v.21, no.23, pp.8355 - 8359 | - |
dc.identifier.doi | 10.1039/c0jm03619f | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.scopusid | 2-s2.0-79955688820 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/33211 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2011/JM/C0JM03619F#!divAbstract | - |
dc.identifier.wosid | 000291112600015 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Selective scission of pyridine-boronium complexes: mechanical generation of Bronsted bases and polymerization catalysts | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ULTRASONIC DEGRADATION | - |
dc.subject.keywordPlus | CHAIN SCISSION | - |
dc.subject.keywordPlus | FLOW | - |
dc.subject.keywordPlus | MACROMOLECULES | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | ANNOUNCEMENT | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | IONS | - |
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