Synthesis, Characterization and Antibacterial Activity of Novel β-cyclodextrin Polyurethane Materials

The advanced water treatment taken by organic micro-pollution or microbiological pollution resource has been a hot issue of public concern. In this article, novel quaternary ammonium salt functionalized β-cyclodextrin polyurethane (QAS-β-CDPU) microparticles were successfully constructed for above-mentioned pollutants removal. By adjusting the proportion chlorine-containing monomers, we studied effect different quaternization degree (0%, 20%, 40%, 60%) on solvent resistance and thermal stability. Staphylococcus aureus (S. aureus) Escherichia coli (E. coli) are recognized as significant human bacterial pathogens, which used model bacteria to investigate antibacterial activity contact-killing tests. Methylene blue (MB) served toxic quantify dye wastewater remediation efficiency. Research shows that reaction diisocyanate can form cyclodextrin-based carbamate network structure. Since both cyclodextrin cavity may remove dye, obtained polymer double advantage. Besides, presence groups enables QAS-β-CDPU possess good bactericidal properties. When is 60%, sterilization rates over 96% S. E. coli. On basis simple, green economical synthetic route, have potential become an ideal multifunctional material in purification. Novel removing dyes from wastewater.