Orhan, MehmetDemirci, FatmaKoçer, Hasan BasriNierstrasz, Vincent2021-03-202021-03-2020200896-84461872-8162http://doi.org/10.1016/j.supflu.2020.104986https://hdl.handle.net/20.500.12885/350Biocidal functionalization in polyester fibers is a really tough challenge because of the lack of tethering groups. This study indicated supercritical carbon dioxide application using N-halamine would be an alternative solution for obtaining antibacterial function on the polyester surface. Firstly, N-(2-methyl 1-(4 methyl-2,5-dioxo-imidazolidin-4 yl)propan-2-yl)acrylamide was synthesized and applied to the polyester in supercritical carbon dioxide medium, at 120 degrees C, 30 MPa for different processing times. The addition of N-halamine on the surface significantly brought antibacterial activity against E. coli. The chlorine loadings showed that 6-h exposure time was critical to obtain sufficient antibacterial activity. This treatment caused a reasonable and tolerable loss in color and mechanical properties. But, the durability to abrasion, stability, and rechargeability of oxidative chlorine, and the durability of N-halamine on the surface were remarkably good. Conclusively, it can be available to work on polyester surfaces with resource-efficient and eco-friendly supercritical carbon dioxide technique for getting more functionalization and modification. (C) 2020 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/openAccessSupercritical carbon dioxide (scCO(2))N-halaminePolyesterAntibacterial surface modificationArticle10.1016/j.supflu.2020.104986165WOS:00055874030002632834476Q2Q1