{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Suekuni MT"],"funding":["American Chemical Society Petroleum Research Fund"],"pagination":["2826-2834"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10598564"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["3(10)"],"pubmed_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 <i>n</i>-decane. Trends in solvent transverse relaxation rates demonstrated that surface polar functional groups induce stronger interactions with water with the opposite effect for <i>n</i>-decane. NMR surface relaxivities (ρ<sub>2</sub>) calculated for the solid-fluid pairs ranged from 0.4 to 8.0 μm s<sup>-1</sup> and 0.3 to 5.4 μm s<sup>-1</sup> for water and <i>n</i>-decane, respectively. The values of ρ<sub>2</sub> 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."],"journal":["JACS Au"],"pubmed_title":["Correlating Surface Chemistry to Surface Relaxivity via TD-NMR Studies of Polymer Particle Suspensions."],"pmcid":["PMC10598564"],"funding_grant_id":["61103-ND10"],"pubmed_authors":["Suekuni MT","Allgeier AM"],"additional_accession":[]},"is_claimable":false,"name":"Correlating Surface Chemistry to Surface Relaxivity via TD-NMR Studies of Polymer Particle Suspensions.","description":"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 <i>n</i>-decane. Trends in solvent transverse relaxation rates demonstrated that surface polar functional groups induce stronger interactions with water with the opposite effect for <i>n</i>-decane. NMR surface relaxivities (ρ<sub>2</sub>) calculated for the solid-fluid pairs ranged from 0.4 to 8.0 μm s<sup>-1</sup> and 0.3 to 5.4 μm s<sup>-1</sup> for water and <i>n</i>-decane, respectively. The values of ρ<sub>2</sub> 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.","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Oct","modification":"2026-06-02T05:10:39.88Z","creation":"2026-04-14T03:13:19.072Z"},"accession":"S-EPMC10598564","cross_references":{"pubmed":["37885588"],"doi":["10.1021/jacsau.3c00384"]}}