A comblike polysiloxane with pendant quaternary ammonium polyether groups: its synthesis, physical properties and antibacterial performance

• Published in: Journal of polymer research Vol. 22; no. 9; pp. 1 - 9
• Main Authors: Zhao, Jie, An, Qiu-feng, Li, Xian-qi, Huang, Liang-xian, Xu, Xin
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2015; Springer Nature B.V
• Subjects: Antibacterial properties; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Escherichia coli; Fabrics; Fourier transforms; Industrial Chemistry/Chemical Engineering; Jewelry; Nuclear magnetic resonance; Original Paper; Polyethers; Polymer Sciences; Polysiloxanes; Staphylococcus aureus; Zeta potential; Antibacterial activity; Quaternary ammonium polyether polysiloxane; Wettability; Fabric
• ISSN: 1022-9760; 1572-8935
• DOI: 10.1007/s10965-015-0821-4

A series of comblike polysiloxanes (QPEPSs) with pendant quaternary ammonium polyether groups were synthesized by hydrosilylation of polymethylhydrosiloxane (PHMS) with allyl polyether epoxy (APEE500) first and then quaternization of the resultant epoxy polyether polysiloxane (PESO) with N, N-dimethyldodecylamine (DMDA). Chemical structure and physical-chemical properties of the synthesized QPEPSs were characterized by Fourier transform infrared spectrum (FT-IR), nuclear magnetic resonance spectrum (NMR), surface tensiometer, Zeta potential analyzer, and so on. And the antibacterial activity was especially studied in the paper. As expected, QPEPSs were easily emulsified into a clear, uniform micro-emulsion with a mean size of about 25 ~ 69 nm. The Zeta potential of the QPEPS micro-emulsions were +22.8 mV ~ +47.6 mV. The fabrics treated by QPEPSs displayed good wettiability and excellent antibacterial activity against both Staphylococcus aureus and Escherichia coli . And their diameter of inhibition zones were 11 ~ 19 cm against S. aureus and E. coli. Besides, the fabrics treated by QPEPSs demonstrated the ability to eliminate up to 99 % of both S. aureus and E. coli.