PMID- 35893451 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220731 IS - 2077-0375 (Print) IS - 2077-0375 (Electronic) IS - 2077-0375 (Linking) VI - 12 IP - 8 DP - 2022 Jul 26 TI - Hydrophilization of Hydrophobic Mesoporous High-Density Polyethylene Membranes via Ozonation. LID - 10.3390/membranes12080733 [doi] LID - 733 AB - This work addresses hydrophilization of hydrophobic mesoporous membranes based on high-density polyethylene (HDPE) via ozonation. Mesoporous HDPE membranes were prepared by intercrystallite environmental crazing. Porosity was 50%, and pore dimensions were below 10 nm. Contact angle of mesoporous membranes increases from 96 degrees (pristine HDPE) to 120 degrees due to the formation of nano/microscale surface relief and enhanced surface roughness. The membranes are impermeable to water (water entry threshold is 250 bar). The prepared membranes were exposed to ozonation and showed a high ozone uptake. After ozonation, the membranes were studied by different physicochemical methods, including DSC, AFM, FTIR spectroscopy, etc. Due to ozonation, wettability of the membranes was improved: their contact angle decreased from 120 degrees down to 60 degrees , and they became permeable to water. AFM micrographs revealed a marked smoothening of the surface relief, and the FTIR spectra indicated the development of new functionalities due to ozonolysis. Both factors contribute to hydrophilization and water permeability of the ozonated HDPE membranes. Hence, ozonation was proved to be a facile and efficient instrument for surface modification of hydrophobic mesoporous HDPE membranes and can also provide their efficient sterilization for biomedical purposes and water treatment. FAU - Tyubaeva, Polina M AU - Tyubaeva PM AUID- ORCID: 0000-0003-4217-2022 AD - Academic Department of Innovative Materials and Technologies, Plekhanov Russian University of Economics, Stremyanny Per. 36, 117997 Moscow, Russia. AD - Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul.Kosygina 4, 119334 Moscow, Russia. FAU - Tyubaev, Mikhail A AU - Tyubaev MA AD - Academic Department of Innovative Materials and Technologies, Plekhanov Russian University of Economics, Stremyanny Per. 36, 117997 Moscow, Russia. FAU - Podmasterev, Vyacheslav V AU - Podmasterev VV AD - Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul.Kosygina 4, 119334 Moscow, Russia. FAU - Bolshakova, Anastasia V AU - Bolshakova AV AUID- ORCID: 0000-0003-1688-6953 AD - Faculty of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1/3, 119991 Moscow, Russia. FAU - Arzhakova, Olga V AU - Arzhakova OV AD - Faculty of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1/3, 119991 Moscow, Russia. LA - eng GR - 075-15-2020-794/Ministry of Science and Higher Education of the Russian Federation/ PT - Journal Article DEP - 20220726 PL - Switzerland TA - Membranes (Basel) JT - Membranes JID - 101577807 PMC - PMC9330096 OTO - NOTNLM OT - high-density polyethylene OT - hydrophilization OT - mesoporous membanes OT - ozonation OT - surface modification COIS- The authors declare no conflict of interest. EDAT- 2022/07/28 06:00 MHDA- 2022/07/28 06:01 PMCR- 2022/07/26 CRDT- 2022/07/27 05:00 PHST- 2022/06/15 00:00 [received] PHST- 2022/07/21 00:00 [revised] PHST- 2022/07/22 00:00 [accepted] PHST- 2022/07/27 05:00 [entrez] PHST- 2022/07/28 06:00 [pubmed] PHST- 2022/07/28 06:01 [medline] PHST- 2022/07/26 00:00 [pmc-release] AID - membranes12080733 [pii] AID - membranes-12-00733 [pii] AID - 10.3390/membranes12080733 [doi] PST - epublish SO - Membranes (Basel). 2022 Jul 26;12(8):733. doi: 10.3390/membranes12080733.