Arm-length-dependent phase transformation and dual dynamic healing behavior of supramolecular networks consisting of ureidopyrimidinone-end-functionalized semi-crystalline star polymers
DC Field | Value | Language |
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dc.contributor.author | Lee, W. | - |
dc.contributor.author | Kwak, S.-Y. | - |
dc.contributor.author | Chung, J.W. | - |
dc.date.available | 2020-11-02T00:40:13Z | - |
dc.date.created | 2020-10-20 | - |
dc.date.issued | 2020-09 | - |
dc.identifier.issn | 0014-3057 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39702 | - |
dc.description.abstract | A rigid crystalline structure suppresses chain mobility and diffusion of self-healing supramolecular networks, lowering their healing capabilities. Herein it is presented that the incorporation of crystals in self-healing supramolecular networks as an effective way to overcome the inherent lack of mechanical strength of self-healing supramolecular networks, instead of a healing barrier. We prepare dual dynamic supramolecular networks composed of two types of dynamic physical bonds, i.e., quadruple hydrogen bonds and crystalline physical bonds, using the ureidopyrimidinone (UPy)-end-functionalized semi-crystalline star-shaped poly(ε-caprolactone)s (USPs). With increasing arm-length of the USPs, the phase of the network changes from UPy-stacked crystals to an amorphous phase and further to chain-folding polymeric crystals. The healing capabilities are also enhanced with increasing the arm-length of the USPs. Such changes in phase and healing capability are strongly associated with the crosslinking density of the network. In addition, the appropriate arm-length balance of USPs can provide a mechanically rigid semi-crystalline supramolecular network with a highly efficient healing property due to their reversible dual dynamic features, associated with the re-association of UPy quadruple hydrogen bonds and restoration of crystalline physical bonds during healing. © 2020 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Ltd | - |
dc.relation.isPartOf | European Polymer Journal | - |
dc.title | Arm-length-dependent phase transformation and dual dynamic healing behavior of supramolecular networks consisting of ureidopyrimidinone-end-functionalized semi-crystalline star polymers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.eurpolymj.2020.109976 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | European Polymer Journal, v.138 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000577182900014 | - |
dc.identifier.scopusid | 2-s2.0-85090140729 | - |
dc.citation.title | European Polymer Journal | - |
dc.citation.volume | 138 | - |
dc.contributor.affiliatedAuthor | Chung, J.W. | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | Crystalline physical bond | - |
dc.subject.keywordAuthor | Dual dynamic supramolecular network | - |
dc.subject.keywordAuthor | Phase transformation | - |
dc.subject.keywordAuthor | Self-healing | - |
dc.subject.keywordAuthor | Ureidopyrimidinone | - |
dc.subject.keywordPlus | Crystals | - |
dc.subject.keywordPlus | Hydrogen bonds | - |
dc.subject.keywordPlus | Polymers | - |
dc.subject.keywordPlus | Rigid structures | - |
dc.subject.keywordPlus | Self-healing materials | - |
dc.subject.keywordPlus | Supramolecular chemistry | - |
dc.subject.keywordPlus | Amorphous phase | - |
dc.subject.keywordPlus | Chain mobility | - |
dc.subject.keywordPlus | Cross-linking density | - |
dc.subject.keywordPlus | Crystalline structure | - |
dc.subject.keywordPlus | Poly (epsiloncaprolactone) | - |
dc.subject.keywordPlus | Quadruple hydrogen bonds | - |
dc.subject.keywordPlus | Semicrystallines | - |
dc.subject.keywordPlus | Supramolecular networks | - |
dc.subject.keywordPlus | Dynamics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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