Properties of poly(titanium oxide)-containing polymeric materials exhibiting UV-induced superhydrophilicity under simulated climate test conditions

Autor: O.A. Ryabkova, E.V. Salomatina, E.A. Zakharychev, R.R. Shvarev, L.A. Smirnova
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Results in Engineering, Vol 15, Iss , Pp 100525- (2022)
Druh dokumentu: article
ISSN: 2590-1230
DOI: 10.1016/j.rineng.2022.100525
Popis: Optically transparent organic-inorganic terpolymers containing nanostructured poly (titanium oxide) (PTO or (≡TiO)n) in polymeric matrixes of poly (hydroxiethylmethacrylate) (pHEMA) and its copolymers with acrylonitrile (AN), 2-ethylhexyleacrylate, buthylmethacrylate, vinylbuthyl ether and exhibiting UV-induced reversible surface hydrophilization had been subjected by climatic tests in the Q-SUN Xe-2 light weathering chamber, which simulates the exposure of the material under ambient conditions for 20 months of its operation. Adhesion, physical-mechanical and thermal-physical properties of PTO-containing materials had studied before and after climatic testing. The materials retain the capacity for the one-electron transition Ti4+ + e‾ ⇆ Ti3+ under UV-irradiation after environmental testing, resulting in both photochromic properties and reversible surface hydrophilization. The photocatalytic activity of materials in stearic acid decomposition at terpolymer's surface of composition [(≡TiO)n]: [HEMA]: [AN] = 1:5:1 had proven.
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