There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 11406 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 11399 | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 12 | - |
dc.contributor.author | Shim, Yul Hui | - |
dc.contributor.author | Lee, Kyung Eun | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Kim, Sang Ouk | - |
dc.contributor.author | Kim, So Youn | - |
dc.date.accessioned | 2023-12-21T20:06:50Z | - |
dc.date.available | 2023-12-21T20:06:50Z | - |
dc.date.created | 2018-12-04 | - |
dc.date.issued | 2018-11 | - |
dc.description.abstract | Graphene oxide liquid crystallinity (GO LC) has been widely exploited for high-performance graphene-based applications. In this regard, colloidal stability of GO LC suspension is a crucial requirement, particularly while polymers are often added to the GO LC. Unfortunately, current level of knowledge on how polymers influence the structure and properties of GO LC is not sufficient to systematically guide the development of applications. Here, we investigate the microstructure and rheological properties of GO LC suspensions in the presence of polymer additives with varying molecular weights and concentrations. Similar to conventional colloidal systems, non-negligible polymer-induced interactions are found in GO LC suspensions, which can effectively modulate the interaction among GO platelets and the relevant physical properties. On the basis of extensive small-angle X-ray scattering and rheological measurements, we demonstrate that, contrary to the general perception, polymer-induced depletion attraction can increase the colloidal stability of GO, while also preventing the vitrification of GO LC. In addition, a proper level of polymer additive can reduce the viscosity of GO LC suspensions by orders of magnitude, providing an effective route to GO LC-based solution processing. After all, the colloidal stability and rheological properties of GO can significantly impact the quality of GO. Therefore, we believe that our finding will be of great interest in the field of graphene-based applications, as it presents effective strategies for improving properties. | - |
dc.identifier.bibliographicCitation | ACS NANO, v.12, no.11, pp.11399 - 11406 | - |
dc.identifier.doi | 10.1021/acsnano.8b06320 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.scopusid | 2-s2.0-85057280902 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/25438 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsnano.8b06320 | - |
dc.identifier.wosid | 000451789200079 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Tailored Colloidal Stability and Rheological Properties of Graphene Oxide Liquid Crystals with Polymer-Induced Depletion Attractions | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | graphene oxide | - |
dc.subject.keywordAuthor | polymer | - |
dc.subject.keywordAuthor | molecular weight | - |
dc.subject.keywordAuthor | liquid crystal | - |
dc.subject.keywordAuthor | viscosity | - |
dc.subject.keywordAuthor | rheology | - |
dc.subject.keywordPlus | MECHANICAL-PROPERTIES | - |
dc.subject.keywordPlus | AGGREGATION | - |
dc.subject.keywordPlus | DISPERSIONS | - |
dc.subject.keywordPlus | MICROSTRUCTURE | - |
dc.subject.keywordPlus | SUSPENSIONS | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | HYDROGELS | - |
dc.subject.keywordPlus | FIBER | - |
dc.subject.keywordPlus | WATER | - |
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.