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DC Field | Value | Language |
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dc.citation.endPage | 19 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 11 | - |
dc.citation.title | POLYMER CHEMISTRY | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Park, J. I. | - |
dc.contributor.author | Choe, A. | - |
dc.contributor.author | Kim, M. P. | - |
dc.contributor.author | Ko, Hyunhyub | - |
dc.contributor.author | Lee, T. H. | - |
dc.contributor.author | Noh, S. M. | - |
dc.contributor.author | Kim, J. C. | - |
dc.contributor.author | Cheong, I. W. | - |
dc.date.accessioned | 2023-12-21T21:15:20Z | - |
dc.date.available | 2023-12-21T21:15:20Z | - |
dc.date.created | 2018-01-12 | - |
dc.date.issued | 2018-01 | - |
dc.description.abstract | Self-healing polymers bearing reversible and bulky urea bonds were prepared by free-radical copolymerization followed by crosslinking with diisocyanates. Linear prepolymers (PtB) were first synthesized from 2-(tert-butylamino) ethyl methacrylate (tBAEMA), methyl methacrylate (MMA), and n-butyl acrylate (BA), in a molar ratio of 1 : 10 : 10, and then crosslinked with 1,6-diisocyanatohexane (HDI) or isophorone diisocyanate (IPDI) to fabricate self-healing polymers. The reversible bonding-debonding between the tBAEMA of the polymer backbone and the isocyanate units of the crosslinker in the self-healing polymer facilitates rapid, repeatable, and water-adaptive self-healing performance, which has been extensively investigated using H-1-NMR, DSC, FT-IR, AFM, optical microscopy, and rheometric analyses. Percentage recovery (%R) and self-healing efficiency (%SHE) were also studied using tensile and single-scratch tests, respectively, and compared with a control sample. It was revealed through extensive analyses that self-healing against a single scratch can be accelerated and repeated up to a certain number of times even in water, although the self-healing polymers are not water-resistant. We also demonstrated that a self-healable tube capable of containing flowing water could be fabricated from a self-healing polymer sheet by using reversible bonding-debonding characteristics of a reversible bulky urea bond. | - |
dc.identifier.bibliographicCitation | POLYMER CHEMISTRY, v.9, no.1, pp.11 - 19 | - |
dc.identifier.doi | 10.1039/c7py01655g | - |
dc.identifier.issn | 1759-9954 | - |
dc.identifier.scopusid | 2-s2.0-85038890207 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23216 | - |
dc.identifier.url | http://pubs.rsc.org/en/Content/ArticleLanding/2018/PY/C7PY01655G#!divAbstract | - |
dc.identifier.wosid | 000418370400002 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Water-adaptive and repeatable self-healing polymers bearing bulky urea bonds | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | GLASS-TRANSITION TEMPERATURE | - |
dc.subject.keywordPlus | DIELS-ALDER REACTION | - |
dc.subject.keywordPlus | MICROVASCULAR NETWORKS | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | CHEMISTRY | - |
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