Grafted antimicrobial cotton fabrics with N-halamine groups via atom transfer radical polymerization

Abstract

An N-halamine precursor 2-(3-(6-methyl-4-oxo-1,4-dihydropyrimidin-2-yl)ureido)ethyl methacrylate (SCMHBMA) was synthesized and grafted on cotton fabrics via atom transfer radical polymerization for antibacterial function after chlorination. The preparation and chlorinated cotton fabrics (Cotton-g-PSMA-Cl) were characterized with FTIR, XPS, SEM, and TGA. The properties of prepared Cotton-g-PSMA-Cl, including thermal property, antibacterial efficiency, durability, and stability, were systematically evaluated. The results showed that these chlorinated Cotton-g-PSMA-Cl fabrics possessed excellent antibacterial activity against E. coli. and S. aureus. After 10 washing cycles and 60 days of routine storage, active chlorine concentrations (Cl ? %) were reduced only 22% and 18%, respectively, and the reduced Cl ? % effectively reverted by simple rechlorination. This new N-halamine antibacterial cotton composite with superior antibacterial properties exhibited potential for future application in the longterm antibacterial field.

Fiber-Supported Biocidal Porous Organic Polymer with High-Density N-Halamine Structures for Chlorine Rechargeable Water Disinfection

“…Moreover, the enlarged surface area and unique porous structures of POP make the FPOP 6.0 present outstanding Cl + and storage stability than other reported fiber-supported materials. ,,,− As summarized in Table , the Cl + in the chlorinated FPOP 6.0 could be 1 order higher than that of other cotton-based N -halamine materials and even higher than N -halamine nanofibrous membranes by several thousands of ppm. More importantly, the chlorine stability was dramatically improved by showing no Cl + loss during the long-term storage, whereas 17–55% of the Cl + was unintendedly released for other reported materials with various storage durations.…”

Design, Structural Characteristic and Antibacterial Performance of Silver-Containing Cotton Fiber Nanocomposite

“…Conversely, the sample of cotton-OH-Ag has definite antibacterial properties, which are due to the presence of silver nanoparticles in the composite [ 30 ]. The sample of cotton-(PO(OH) 2 )(Cl) also has special antibacterial properties, which can be explained by the presence of functional groups in the sample, especially chlorine atoms [ 52 ]. The composite that was prepared based on the phosphorus-containing sample (cotton-(PO(OH) 2 )(Cl)-Ag) has the best activity against all studied bacteria.…”

Nonleaching Antimicrobial Cotton Fabrics Finished with Hyperbranched Polylysine

“…Nonleaching antimicrobial fabrics are constructed by chemically bonding antimicrobial agents on the fabric surfaces and kill the microbes by destroying the integrity of the cell membrane through electrostatic interaction. , Chemical bonding inhibits the dissolution of the antimicrobial agent, greatly improving the safety and washing durability of nonleaching antimicrobial fabrics. − There is only one kind of commercial silicone quaternary ammonium salt antimicrobial agents that can be obtained in the market . Various new finishing strategies and antimicrobial agents have been designed and developed to overcome this limitation. − Chen et al synthesized a series of reactive antimicrobial finishing agent, siloxane sulfopropylbetaine (SSPB), zwitterionic sulfopropylbetaine (NCO-sulfopropylbetaine), and isocyanate group (NCO)-containing quaternary ammonium salt (IQAS), to prepare various durable antimicrobial CF surfaces. Liu et al utilized the mist polymerization method via initiating a functional monomer, methacryloxyethyltrimethylammonium chloride (DMC), to copolymerize with acrylic acid pretreated on the surface of the CF, to prepare the Janus CF with excellent antibacterial and antifouling performances .…”