Supercritical carbon dioxide application using hydantoin acrylamide for biocidal functionalization of polyester

Mehmet Orhan; Fatma Demirci; Hasan B Kocer; Vincent Nierstrasz

doi:10.1016/j.supflu.2020.104986

Supercritical carbon dioxide application using hydantoin acrylamide for biocidal functionalization of polyester

J Supercrit Fluids. 2020 Nov 1:165:104986. doi: 10.1016/j.supflu.2020.104986. Epub 2020 Jul 12.

Authors

Mehmet Orhan^{1

2}, Fatma Demirci³, Hasan B Kocer³, Vincent Nierstrasz²

Affiliations

¹ Department of Textile Engineering, Faculty of Engineering, Bursa Uludag University, Bursa, 16 059, Turkey.
² Textile Materials Technology, Department of Textile Technology, Faculty of Textiles, Engineering and Business, University of Borås, Borås, 501 90, Sweden.
³ Department of Fiber and Polymer Engineering, Bursa Technical University, Bursa, 16 330, Turkey.

Abstract

Biocidal 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 °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.

Keywords: Antibacterial surface modification; N-halamine; Polyester; Supercritical carbon dioxide (scCO2).