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Correlating Surface Chemistry to Surface Relaxivity via TD-NMR Studies of Polymer Particle Suspensions
dc.contributor.author | Suekuni, Murilo T. | |
dc.contributor.author | Allgeier, Alan M. | |
dc.date.accessioned | 2024-06-03T18:16:55Z | |
dc.date.available | 2024-06-03T18:16:55Z | |
dc.date.issued | 2023-10-09 | |
dc.identifier.citation | Suekuni MT, Allgeier AM. Correlating Surface Chemistry to Surface Relaxivity via TD-NMR Studies of Polymer Particle Suspensions. JACS Au. 2023 Oct 9;3(10):2826-2834. doi: 10.1021/jacsau.3c00384. PMID: 37885588; PMCID: PMC10598564 | en_US |
dc.identifier.uri | https://hdl.handle.net/1808/35091 | |
dc.description.abstract | This study elucidates the impact of surface chemistry on solvent spin relaxation rates via time-domain nuclear magnetic resonance (TD-NMR). Suspensions of polymer particles of known surface chemistry were prepared in water and n-decane. Trends in solvent transverse relaxation rates demonstrated that surface polar functional groups induce stronger interactions with water with the opposite effect for n-decane. NMR surface relaxivities (ρ2) calculated for the solid–fluid pairs ranged from 0.4 to 8.0 μm s–1 and 0.3 to 5.4 μm s–1 for water and n-decane, respectively. The values of ρ2 for water displayed an inverse relationship to contact angle measurements on surfaces of similar composition, supporting the correlation of the TD-NMR output with polymer wettability. Surface composition, i.e., H/C ratios and heteroatom content, mainly contributed to the observed surface relaxivities compared to polymer % crystallinity and mean particle sizes via multiple linear regression. Ultimately, these findings emphasize the significance of surface chemistry in TD-NMR measurements and provide a quantitative foundation for future research involving TD-NMR investigations of wetted surface area and fluid-surface interactions. A comprehensive understanding of the factors influencing solvent relaxation in porous media can aid the optimization of industrial processes and the design of materials with enhanced performance. | en_US |
dc.publisher | ACS Publications | en_US |
dc.rights | Copyright © 2023 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.subject | TD-NMR | en_US |
dc.subject | Polymer science | en_US |
dc.subject | Surface–solvent interactions | en_US |
dc.subject | Adsorption energy | en_US |
dc.subject | Particle suspensions | en_US |
dc.subject | Surface relaxivity | en_US |
dc.subject | Solvent relaxation | en_US |
dc.title | Correlating Surface Chemistry to Surface Relaxivity via TD-NMR Studies of Polymer Particle Suspensions | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Allgeier, Alan M. | |
kusw.kudepartment | Department of Chemical and Petroleum Engineering | en_US |
dc.identifier.doi | 10.1021/jacsau.3c00384 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.identifier.pmid | PMC10598564 | en_US |
dc.rights.accessrights | openAccess | en_US |
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Except where otherwise noted, this item's license is described as: Copyright © 2023 The Authors. Published by American Chemical Society
Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).