{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T21:16:12Z","timestamp":1779311772823,"version":"3.51.4"},"reference-count":41,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T00:00:00Z","timestamp":1717718400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100011789","name":"Jilin Province Science and Technology Department","doi-asserted-by":"publisher","award":["20220101194JC"],"award-info":[{"award-number":["20220101194JC"]}],"id":[{"id":"10.13039\/501100011789","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Ethanol possesses high economic value, but as an industrial waste, it poses harm to human health and the environment. The paper describes the preparation of a thermoplastic polyurethane-poly(n-isopropylacrylamide) (TPU-PNIPAM) copolymer designed to selectively uptake alcohol in aqueous solution. The material was created by bonding TPU and PNIPAM together through intermolecular hydrogen bonds, enhancing its hydrophobic properties and making it easier to interact with alcohol molecules. As the amount of PNIPAM in TPU increases, the number of hydrophobic isopropyl groups in TPU-PNIPAM also increases, leading to an enhanced selective uptake ability of TPU-PNIPAM for alcohols in aqueous solution. When the temperature reaches 55 \u00b0C, the hydrophobic groups in TPU-PNIPAM are more exposed, further enhancing the selective uptake ability of TPU-PNIPAM for alcohols in aqueous solution. TPU-PNIPAM demonstrates selective preferential uptake for various concentrations and types of alcohol in aqueous solutions. The material\u2019s selective uptake performance for alcohols increases with their hydrophobicity, so TPU-PNIPAM exhibited the best adsorption performance for a 10 wt% n-propanol solution under the combined effect of steric hindrance. In addition, TPU-PNIPAM exhibited selective adsorption for other organic solvents, which demonstrated the universality of TPU-PNIPAM in removing contaminants from aqueous solutions.<\/jats:p>","DOI":"10.3390\/ma17122795","type":"journal-article","created":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T10:43:42Z","timestamp":1717757022000},"page":"2795","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Thermoplastic Polyurethane-poly(N-isopropylacrylamide) Copolymer for Selective Uptake of Alcohol from Aqueous Solution"],"prefix":"10.3390","volume":"17","author":[{"given":"Fei","family":"Wang","sequence":"first","affiliation":[{"name":"College of Chemistry, Jilin University, Changchun 130061, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tiexin","family":"Cheng","sequence":"additional","affiliation":[{"name":"College of Chemistry, Jilin University, Changchun 130061, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guangdong","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Chemistry, Jilin University, Changchun 130061, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.cej.2012.06.035","article-title":"Kinetic modeling of hydrocarbon adsorbers for gasoline and ethanol fuels","volume":"207\u2013208","author":"Ramanathan","year":"2012","journal-title":"Chem. Eng. J."},{"key":"ref_2","first-page":"349","article-title":"Effect of Ethanol Treatment on Indices of Cumulative Oxidative Stress","volume":"270","author":"Bondy","year":"1994","journal-title":"Eur. J. Pharmacol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1400","DOI":"10.1016\/j.matlet.2011.02.013","article-title":"Ethanol Chemi-Sensor: Evaluation of Structural, Optical and Sensing Properties of CuO Nanosheets","volume":"65","author":"Faisal","year":"2011","journal-title":"Mater. Lett."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"3195","DOI":"10.1021\/acssuschemeng.0c08256","article-title":"Integrated High Water Affinity and Size Exclusion Effect on Robust Cu-Based Metal-Organic Framework for Efficient Ethanol\u2014Water Separation","volume":"9","author":"Wang","year":"2021","journal-title":"ACS Sustain. Chem. Eng."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"8667","DOI":"10.1039\/c1cc12728d","article-title":"Ethanol and water adsorption in methanol-derived ZIF-71","volume":"47","author":"Lively","year":"2011","journal-title":"Chem. Commun."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"116675","DOI":"10.1016\/j.seppur.2020.116675","article-title":"Fabrication and characterization of superhydrophobic PDMS composite membranes for efficient ethanol recovery via pervaporation","volume":"241","author":"He","year":"2020","journal-title":"Sep. Purif. Technol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"11970","DOI":"10.1039\/c3ta12001e","article-title":"Polydopamine-based superhydrophobic membranes for biofuel recovery","volume":"1","author":"Liu","year":"2013","journal-title":"J. Mater. Chem. A"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"104977","DOI":"10.1016\/j.jece.2020.104977","article-title":"Constructing superhydrophobic ZIF-8 layer with bud-like surface morphology on PDMS composite membrane for highly efficient ethanol\/water separation","volume":"9","author":"Pan","year":"2021","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2107","DOI":"10.1039\/c0ee00630k","article-title":"Biofuel purification by pervaporation and vapor permeation in metal-organic frameworks: A computational study","volume":"4","author":"Nalaparaju","year":"2011","journal-title":"Energy Environ. Sci."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"28393","DOI":"10.1021\/acsomega.0c04491","article-title":"Water\/Alcohol Mixture Adsorption in Hydrophobic Materials: Enhanced Water Ingress Caused by Hydrogen Bonding","volume":"5","author":"Krishna","year":"2020","journal-title":"ACS Omega"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1669","DOI":"10.1016\/j.biortech.2010.09.092","article-title":"Influence of fermentation by-products on the purification of ethanol from water using pervaporation","volume":"102","author":"Chovau","year":"2011","journal-title":"Bioresour. Technol."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2666","DOI":"10.1002\/app.34319","article-title":"Modified Polydimethylsiloxane\/Polystyrene Blended IPN Pervaporation Membrane for Ethanol\/Water Separation","volume":"122","author":"Ahmed","year":"2011","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1016\/j.memsci.2016.11.014","article-title":"Effects of sodium ions on the separation performance of pure-silica MFI zeolite membranes","volume":"524","author":"Xu","year":"2017","journal-title":"J. Membr. Sci."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"7867","DOI":"10.1021\/acs.jpcc.7b00172","article-title":"Separation of Ethanol and Water Using Graphene and Hexagonal Boron Nitride Slit Pores: A Molecular Dynamics Study","volume":"121","author":"Kommu","year":"2017","journal-title":"J. Phys. Chem. C"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1002\/bit.260250110","article-title":"Recovery of ethanol from fermentation broths using selective sorption-desorption","volume":"25","author":"Pitt","year":"1983","journal-title":"Biotechnol. Bioeng."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"e16274","DOI":"10.1002\/aic.16274","article-title":"Modeling and simulation of gas separations with spiral-wound membranes","volume":"66","author":"DeJaco","year":"2020","journal-title":"AIChE J."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1016\/j.cej.2017.04.126","article-title":"Applying the wave theory to fixed-bed dynamics of Metal-Organic Frameworks exhibiting stepped adsorption isotherms: Water\/ethanol separation on ZIF-8","volume":"324","author":"Denayer","year":"2017","journal-title":"Chem. Eng. J."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"11542","DOI":"10.1021\/jp1033273","article-title":"Molecular Understanding for the Adsorption of Water and Alcohols in Hydrophilic and Hydrophobic Zeolitic Metal-Organic Frameworks","volume":"114","author":"Nalaparaju","year":"2010","journal-title":"J. Phys. Chem. C"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/j.cej.2013.01.057","article-title":"Separation of ethanol-water liquid mixtures by on a polymeric resin Sepabeads 207\u00ae","volume":"220","author":"Delgado","year":"2013","journal-title":"Chem. Eng. J."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"4124","DOI":"10.1021\/jp312323b","article-title":"Mechanism of Alcohol-Water Separation in Metal-Organic Frameworks","volume":"117","author":"Mavrandonakis","year":"2013","journal-title":"J. Phys. Chem. C"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"119675","DOI":"10.1016\/j.memsci.2021.119675","article-title":"Designing highly selective and stable water transport channel through graphene oxide membranes functionalized with polyhedral oligomeric silsesquioxane for ethanol dehydration","volume":"638","author":"Liang","year":"2021","journal-title":"J. Membr. Sci."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.polymertesting.2018.09.033","article-title":"Lightweight mechanical robust foam with a herringbone-like porous structure for oil\/water separation and filtering","volume":"72","author":"Cao","year":"2018","journal-title":"Polym. Testing"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"372","DOI":"10.1016\/j.polymer.2012.10.019","article-title":"Phase structure in segmented polyurethanes having fatty acid-based soft segments","volume":"54","author":"Hong","year":"2013","journal-title":"Polymer."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"17470","DOI":"10.1038\/s41598-017-17647-w","article-title":"Facile Fabrication of Porous Conductive Thermoplastic Polyurethane Nanocomposite Films via Solution Casting","volume":"7","author":"Wu","year":"2017","journal-title":"Sci. Rep."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Mu\u00f1oz-Chilito, J., Lara-Ramos, J.A., Mar\u00edn, L., Machuca-Mart\u00ednez, F., Correa-Aguirre, J.P., Hidalgo-Salazar, M.A., Garc\u00eda-Navarro, S., Roca-Blay, L., Rodr\u00edguez, L.A., and Mosquera-Vargas, E. (2023). Morphological Electrical and Hardness Characterization of Carbon Nanotube-Reinforced Thermoplastic Polyurethane (TPU) Nanocomposite Plates. Molecules, 28.","DOI":"10.3390\/molecules28083598"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1021\/acs.chemmater.3c01391","article-title":"Nanocomposite Aerogel Network Featuring High Surface Area and Superinsulation Properties","volume":"36","author":"Karamikamkar","year":"2024","journal-title":"Chem. Mater."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"107486","DOI":"10.1016\/j.compositesa.2023.107486","article-title":"Functionalizing MXene with hypophosphite for highly fire safe thermoplastic polyurethane composites","volume":"168","author":"Liu","year":"2023","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1165","DOI":"10.1002\/smll.201401651","article-title":"Thermoresponsive Poly(N-isopropylacrylamide)\/Graphene\/Au Nanocomposite Hydrogel for Water Treatment by a Laser-Assisted Approach","volume":"11","author":"Cong","year":"2015","journal-title":"Small"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"14269","DOI":"10.1021\/acs.langmuir.7b02903","article-title":"Combined Cononsolvency and Temperature Effects on Adsorbed PNIPAM Microgels","volume":"33","author":"Backes","year":"2017","journal-title":"Langmuir."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"5898","DOI":"10.1021\/la8038363","article-title":"1H MAS NMR Studies of the Phase Separation of Poly (N-isopropylacrylamide) Gel in Binary Solvents","volume":"25","author":"Wang","year":"2009","journal-title":"Langmuir."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"906","DOI":"10.1021\/acs.est.5b03418","article-title":"Robust Thermoresponsive Polymer Composite Membrane with Switchable Superhydrophilicity and Superhydrophobicity for Efficient Oil-Water Separation","volume":"50","author":"Ou","year":"2016","journal-title":"Environ. Sci. Technol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"3971953","DOI":"10.1155\/2020\/3971953","article-title":"Colloidal Probes of PNIPAM-Grafted SiO2 in Studying the Microrheology of Thermally Sensitive Microgel Suspensions","volume":"2020","author":"Shang","year":"2020","journal-title":"Adv. Polym. Technol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"133814","DOI":"10.1016\/j.conbuildmat.2023.133814","article-title":"Research on the performance and mechanism of asphalt modified by thermoplastic polyurethane with different chemical structures","volume":"409","author":"Wang","year":"2023","journal-title":"Constr. Build. Mater."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"4025","DOI":"10.1016\/j.polymer.2008.06.018","article-title":"Characterization of electrospun poly(N-isopropyl acrylamide) fibers","volume":"49","author":"Rockwood","year":"2008","journal-title":"Polymer"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1841","DOI":"10.1007\/s10973-022-11852-0","article-title":"Highly efficient intumescent flame retardant of dopamine-modified ammonium polyphosphate for the thermoplastic polyurethane elastomer","volume":"128","author":"Hu","year":"2023","journal-title":"J. Therm. Anal. Calorim."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"504","DOI":"10.1002\/polb.21655","article-title":"Organic\u2013inorganic hybrid hydrogels involving poly(N-isopropylacrylamide) and polyhedral oligomeric silsesquioxane: Preparation and rapid thermoresponsive properties","volume":"47","author":"Zeng","year":"2009","journal-title":"J. Polym. Sci. Part B Polym. Phys."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"19723","DOI":"10.1021\/jp502867v","article-title":"Deconstructing Hydrogen-Bond Networks in Confined Nanoporous Materials: Implications for Alcohol-Water Separation","volume":"118","author":"Wang","year":"2014","journal-title":"Phys. Chem. C"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"3010","DOI":"10.1039\/c2sm06883d","article-title":"Reentrant volume phase transition of cross-linked poly(N-isopropylacrylamide) gels in mixed solvents of water\/methanol","volume":"8","author":"Kojima","year":"2012","journal-title":"Soft Matter"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1126","DOI":"10.1021\/ma502393z","article-title":"Phase Transition and Preferential Alcohol Adsorption of Poly(N,N-diethylacrylamide) Gel in Water\/Alcohol Mixtures","volume":"48","author":"Liu","year":"2015","journal-title":"Macromolecules"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.memsci.2005.04.001","article-title":"Development of gating membranes that are sensitive to the concentration of ethanol","volume":"261","author":"Ito","year":"2005","journal-title":"J. Membr. Sci."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"841","DOI":"10.1002\/ceat.201500658","article-title":"Ethanol-Responsive Poly(Vinylidene Difluoride) Membranes with Nanogels as Functional Gates","volume":"39","author":"Xie","year":"2016","journal-title":"Chem. Eng. Technol."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/12\/2795\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T14:55:23Z","timestamp":1760108123000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/17\/12\/2795"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,6,7]]},"references-count":41,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2024,6]]}},"alternative-id":["ma17122795"],"URL":"https:\/\/doi.org\/10.3390\/ma17122795","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,6,7]]}}}