Frank-Kasper Phases Identified in PDMS-b-PTFEA Copolymers with High Conformational Asymmetry
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Seungbae | - |
dc.contributor.author | Jun, Taesuk | - |
dc.contributor.author | Jo, Seongjun | - |
dc.contributor.author | Ahn, Hyungju | - |
dc.contributor.author | Lee, Seungwoo | - |
dc.contributor.author | Lee, Byeongdu | - |
dc.contributor.author | Ryu, Du Yeol | - |
dc.date.accessioned | 2021-09-01T05:00:57Z | - |
dc.date.available | 2021-09-01T05:00:57Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-10 | - |
dc.identifier.issn | 1022-1336 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/62692 | - |
dc.description.abstract | In the search for the formation of Frank-Kasper phases from diblock copolymer self-assembly, a series of compositionally asymmetric poly(dimethylsiloxane)-b-poly(2,2,2-triflouroethyl acrylate)s (PDMS-b-PTFEAs) are synthesized to produce PDMS-rich phases with PDMS volume fractions (f(PDMS)) ranging from 0.746 to 0.869. As determined by small-angle X-ray scattering analysis, the Frank-Kasper sigma and C14 phases are identified at f(PDMS) = 0.796 and 0.851, respectively, plausibly due to high conformational asymmetry (epsilon approximate to 2.20) between the two blocks. Intriguingly, the sigma phase develops during heating from a short-range liquid-like packing (LLP) state, whereas the C14 phase is achieved at room temperature, which are both followed by a disordering at higher temperatures. Based on thermal experiments from a super cooled disordered state, the findings further provide compelling evidence of an LLP-hexagonally packed cylinder-sigma transition and a direct pathway to the C14 phase during heating from an LLP state. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | TRANSFER RADICAL POLYMERIZATION | - |
dc.subject | SPHERE PACKINGS | - |
dc.subject | BLOCK | - |
dc.subject | POLY(DIMETHYLSILOXANE) | - |
dc.subject | CHAINS | - |
dc.title | Frank-Kasper Phases Identified in PDMS-b-PTFEA Copolymers with High Conformational Asymmetry | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Seungwoo | - |
dc.identifier.doi | 10.1002/marc.201900259 | - |
dc.identifier.scopusid | 2-s2.0-85072918846 | - |
dc.identifier.wosid | 000488969100003 | - |
dc.identifier.bibliographicCitation | MACROMOLECULAR RAPID COMMUNICATIONS, v.40, no.19 | - |
dc.relation.isPartOf | MACROMOLECULAR RAPID COMMUNICATIONS | - |
dc.citation.title | MACROMOLECULAR RAPID COMMUNICATIONS | - |
dc.citation.volume | 40 | - |
dc.citation.number | 19 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | TRANSFER RADICAL POLYMERIZATION | - |
dc.subject.keywordPlus | SPHERE PACKINGS | - |
dc.subject.keywordPlus | BLOCK | - |
dc.subject.keywordPlus | POLY(DIMETHYLSILOXANE) | - |
dc.subject.keywordPlus | CHAINS | - |
dc.subject.keywordAuthor | block copolymers | - |
dc.subject.keywordAuthor | conformational asymmetry | - |
dc.subject.keywordAuthor | Frank-Kasper phases | - |
dc.subject.keywordAuthor | quasicrystals | - |
dc.subject.keywordAuthor | self-assembly | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.