There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 108531 | - |
dc.citation.title | POLYMER TESTING | - |
dc.citation.volume | 137 | - |
dc.contributor.author | Park, Sungwoo | - |
dc.contributor.author | Lee, Jeong-ha | - |
dc.contributor.author | Cho, Maenghyo | - |
dc.contributor.author | Lee, Yun Seog | - |
dc.contributor.author | Chung, Hayoung | - |
dc.contributor.author | Yang, Seunghwa | - |
dc.date.accessioned | 2024-08-27T10:35:09Z | - |
dc.date.available | 2024-08-27T10:35:09Z | - |
dc.date.created | 2024-08-21 | - |
dc.date.issued | 2024-08 | - |
dc.description.abstract | Shape-memory polyurethanes (SMPUs) are promising materials that change shape in response to external heat. These polymers have a dual-segment structure: a hard segment for netpoint and a soft segment for molecular switch. Understanding the molecular behavior of each segment and microphase-separated morphology is crucial for comprehending the shape-memory mechanism. This study aimed to understand the shape-memory behavior by observing the phase separation of SMPU using mesoscale models based on dissipative particle dynamics (DPD) simulations. The SMPU copolymer was modeled using 4,4 '-diphenylmethane diisocyanate (MDI, hard segment) and poly(ethylene oxide) (PEO, soft segment). By calculating segment solubility and repulsion parameters, we found that the hard-segment domain changes from isolated form to a lamellar and interconnected structure and eventually to a continuous form as its content increases. Combining these insights with shape-memory performance models can enhance our understanding of better SMPU design and contribute significantly to the optimization of smart stimuli-responsive materials. | - |
dc.identifier.bibliographicCitation | POLYMER TESTING, v.137, pp.108531 | - |
dc.identifier.doi | 10.1016/j.polymertesting.2024.108531 | - |
dc.identifier.issn | 0142-9418 | - |
dc.identifier.scopusid | 2-s2.0-85199760781 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83560 | - |
dc.identifier.wosid | 001285213000001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Understanding the shape-memory mechanism of thermoplastic polyurethane by investigating the phase-separated morphology: A dissipative particle dynamics study | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Characterization & Testing; Polymer Science | - |
dc.relation.journalResearchArea | Materials Science; Polymer Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Phase separation | - |
dc.subject.keywordAuthor | Dissipative particle dynamics | - |
dc.subject.keywordAuthor | Mesoscale simulation | - |
dc.subject.keywordAuthor | Solubility parameter | - |
dc.subject.keywordAuthor | Phase morphology | - |
dc.subject.keywordAuthor | Shape-memory mechanism | - |
dc.subject.keywordAuthor | Shape-memory polyurethane | - |
dc.subject.keywordPlus | SEGMENTED POLYURETHANES | - |
dc.subject.keywordPlus | MOLECULAR-DYNAMICS | - |
dc.subject.keywordPlus | BLOCK-COPOLYMERS | - |
dc.subject.keywordPlus | X-RAY | - |
dc.subject.keywordPlus | SIMULATION | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | STRATEGY | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.