Co-nonsolvency effect of thermosensitive N-isopropylacrylamide nanometer-sized gel particles in water-PEG systems
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sung Min | - |
dc.contributor.author | Bae, Young Chan | - |
dc.date.accessioned | 2022-07-16T10:30:54Z | - |
dc.date.available | 2022-07-16T10:30:54Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2013-04 | - |
dc.identifier.issn | 0032-3861 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163115 | - |
dc.description.abstract | Nanometer-sized N-isopropylacrylamide (NIPA) gel particles were prepared by precipitation polymerization, and their thermosensitive swelling behaviors in water-poly(ethylene glycol) (PEG) (MW = 200, 400) systems were investigated using photon correlation spectroscopy (PCS). The volume transition temperature decreased with increasing PEG concentration, and a completely unexpected swelling behavior was observed at high PEG concentrations. The cloud points of poly(N-isopropylacrylamide) (PNIPA) in water-PEG systems were also determined by thermo-optical analysis (TOA) in order to compare the volume transition temperatures of gel particles with the phase transition temperatures of linear PNIPA in given solvent mixtures. A lattice-based molecular thermodynamic framework was employed to calculate interaction parameters from binary liquid-liquid equilibria (LLE), and those parameters were then applied directly to describe the co-nonsolvency effects of the ternary solutions. By combining the molecular thermodynamic model for the mixing contribution with the Flory-Rehner (FR) model for the elasticity contribution, the reentrant swelling equilibria at various temperatures were calculated. Using only one adjustable parameter, we were able to describe the swelling behaviors at high temperature regions (above the LCST). Lastly, the predicted results were compared to PEG (MW = 200, 1000) selectivity data inside NIPA gel, and were found to be in good agreement with the proposed model without further adjustable parameters. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Co-nonsolvency effect of thermosensitive N-isopropylacrylamide nanometer-sized gel particles in water-PEG systems | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Bae, Young Chan | - |
dc.identifier.doi | 10.1016/j.polymer.2013.02.014 | - |
dc.identifier.scopusid | 2-s2.0-84875744734 | - |
dc.identifier.wosid | 000317377000025 | - |
dc.identifier.bibliographicCitation | POLYMER, v.54, no.8, pp.2138 - 2145 | - |
dc.relation.isPartOf | POLYMER | - |
dc.citation.title | POLYMER | - |
dc.citation.volume | 54 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 2138 | - |
dc.citation.endPage | 2145 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | MOLECULAR THERMODYNAMIC MODEL | - |
dc.subject.keywordPlus | SOLVENT-SENSITIVE HYDROGELS | - |
dc.subject.keywordPlus | VOLUME PHASE-TRANSITION | - |
dc.subject.keywordPlus | POLY(N-ISOPROPYLACRYLAMIDE) GELS | - |
dc.subject.keywordPlus | SWELLING BEHAVIOR | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | POLYMER-SOLUTIONS | - |
dc.subject.keywordPlus | PREDICTIONS | - |
dc.subject.keywordPlus | EQUILIBRIA | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordAuthor | Hydrogel | - |
dc.subject.keywordAuthor | Phase transition temperature | - |
dc.subject.keywordAuthor | Reentrant swelling | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0032386113001353?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
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.