期刊
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷 16, 期 3, 页码 219-230出版社
SPRINGER
DOI: 10.1007/s10904-006-9048-5
关键词
polysilsesquioxanes; quaternary ammonium; biocidal polymers; antimicrobials; antimicrobial polymers; antibacterial agents; QAS; quats
Octa(3-chloropropylsilsesquioxane), (T-ClPr)(8), and a soluble, low molecular weight, poly(3-chloropropylsilsesquioxane) were subjected to a reaction with dimethyl-n-octylamine to convert part or almost all the chloropropyl groups to corresponding quaternary ammonium salt (QAS) groups. Polysilsesquioxanes containing secondary n-amylammonium salt (SAS) groups were synthesized by reaction of n-alkyl bromides with poly(3-aminopropylsilsesquioxane) of limited molecular weight or by amination of n-amyl bromide with 3-aminopropyltriethoxysilane followed by hydrolysis and polycondensation. The antibacterial activity of these QAS- and SAS-containing silsesquioxane materials against two representative Gram-positive and three representative Gram-negative bacterium strains were tested. Most of these materials showed high or moderate activity against Gram-positive bacteria and moderate or weak activity against Gram-negative bacteria.
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