20.500.12556/DiRROS-16617 Advanced method for efficient functionalization of polymers by intermediate free-radical formation with vacuum-ultraviolet radiation and producing superhydrophilic surfaces An efficient approach for tailoring surface properties of polymers is presented, which enables rapid modification leading to superhydrophilic properties. The approach is based on vacuum-ultraviolet radiation (VUV) pretreatment of the surface to create reactive dangling bonds. This step is followed by a second treatment using neutral oxygen atoms that react with the dangling bonds and form functional groups. The beneficial effect of VUV pretreatment for enhanced functionalization was clearly demonstrated by comparing VUV pretreatment in plasmas created in different gases, i.e., hydrogen, nitrogen, and oxygen, which differ in the intensity of VUV/UV radiation. The emission intensity of VUV radiation for all gases was measured by vacuum ultraviolet spectroscopy. It was shown that VUV has a strong influence on the treatment time and final surface wettability. A superhydrophilic surface was obtained only if using VUV pretreatment. Furthermore, the treatment time was significantly reduced to only a second of treatment. These findings show that such an approach may be used to enhance the surface reaction efficiency for further grafting of chemical groups. plasma treatment vacuum-ultraviolet radiation treatment surface functionalization polymer polyvinyl chloride vacuum-ultraviolet spectroscopy vacuum-ultraviolet photons true false true Elsevier Nizozemska Angleški jezik Ni določen © 2023 The Author(s) Neznano 2023-06-06 12:11:56 2023-06-06 12:11:58 2023-06-16 03:34:45 0000-00-00 00:00:00 2023 0 0 Nasl. z nasl. zaslona; Soavtorji: Rok Zaplotnik, Miran Mozetič, Nina Recek; Opis vira z dne 5. 6. 2023; str. 1-9 Vol. 443, [article no.] 114876 Sep. 2023 0000-00-00 Zaloznikova VTisku NiDoloceno 0000-00-00 2023-05-22 2023-05-24 54 1873-2666 10.1016/j.jphotochem.2023.114876 154455299 https://www.sciencedirect.com/science/article/pii/S1010603023003416?via%3Dihub 1 cece5462-0441-11ee-9634-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=22509 RAZ_Vesel_Alenka_2023.pdf RAZ_Vesel_Alenka_2023.pdf 1 E16C0A49D417F1E4A4455315FC11A9A1 57380738091021ef1ca8a8a95fc09e5458e917fb1c2f90b7f26d69369066adc2 5a287b7a-0446-11ee-9634-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=22511 Institut Jožef Stefan 0 0 0