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Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 2326 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2321 | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 45 | - |
dc.contributor.author | Ono, Robert J. | - |
dc.contributor.author | Kang, Songsu | - |
dc.contributor.author | Bielawski, Christopher W. | - |
dc.date.accessioned | 2023-12-22T05:14:45Z | - |
dc.date.available | 2023-12-22T05:14:45Z | - |
dc.date.created | 2020-07-10 | - |
dc.date.issued | 2012-03 | - |
dc.description.abstract | The Ni-catalyzed Kumada catalyst transfer polycondensation of a novel biaryl monomer, 2-(4-bromo-2,5-bis(2-ethylhexyloxy)phenyl)-5-chloromagnesiothiophene (2), afforded the respective pi-conjugated alternating copolymer poly(thiophene-alt-p-phenylene) (PTPP). Under optimized conditions, the polystyrene-equivalent number-average molecular weight (M-n) of the copolymers prepared using this method were varied between 6.4 and 39 kDa by adjusting the initial monomer-to-catalyst ratios and, in all cases, the resulting materials exhibited narrow polydispersity indices (PDIs <= 1.33). Moreover, the M-n of the copolymers produced were found to increase linearly with monomer conversion. The ability of PTPP to be utilized as a macroinitiator for further copolymerization was confirmed through a series of chain extension experiments as well as block copolymerizations involving 2-bromo-5-chloromagnesio-3-hexylthiophene. MALDI-MS analysis showed that the major population of the PTPP prepared using the aforementioned method contained H/Br end groups, as would be expected for efficient catalyst transfer during the polymerization with minimal occurrence of chain termination. Collectively, these results were consistent with a controlled polymerization reaction and constituted the first such example in which a conjugated polymer with an alternating repeat unit was produced via a chain-growth process. | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.45, no.5, pp.2321 - 2326 | - |
dc.identifier.doi | 10.1021/ma300013e | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.scopusid | 2-s2.0-84858227605 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/33151 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/ma300013e | - |
dc.identifier.wosid | 000301397800017 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Controlled Chain-Growth Kumada Catalyst Transfer Polycondensation of a Conjugated Alternating Copolymer | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | BLOCK-COPOLYMERS | - |
dc.subject.keywordPlus | POLYMERIZATION | - |
dc.subject.keywordPlus | POLY(P-PHENYLENE) | - |
dc.subject.keywordPlus | POLYTHIOPHENE | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | FLUORENE | - |
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