Solubilization ability of star-shaped trimeric quaternary ammonium bromide surfactant

2019 ◽  
Vol 291 ◽  
pp. 111254 ◽  
Author(s):  
Keisuke Matsuoka ◽  
Naohiro Takahashi ◽  
Shiho Yada ◽  
Tomokazu Yoshimura
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Bromide ◽  
Solubilization Ability

Effects of annealing on mixture-cast membranes of Nafion® and quaternary ammonium bromide salts

2003 ◽  
Vol 213 (1-2) ◽  
pp. 55-66 ◽  
Author(s):  
Trisha J. Thomas ◽  
Karthik E. Ponnusamy ◽  
Nancy M. Chang ◽  
Kim Galmore ◽  
Shelley D. Minteer
Keyword(s):  
Quaternary Ammonium ◽  
Ammonium Bromide

Surface Modification for Cotton Fiber and its Antimicrobial Characteristics

2011 ◽  
Vol 311-313 ◽  
pp. 2067-2070
Author(s):  
Fei Zhou ◽  
Jing Zheng
Keyword(s):  
Cotton Fiber ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Compound ◽  
Hydroxyl Group ◽  
Ammonium Bromide ◽  
Ammonium Compound ◽  
Gram Positive Bacteria ◽  
Wide Range ◽  
Dimethyl Ammonium ◽  
Ammonium Compounds

Quaternary ammonium compounds, Couple, Cotton fiber, Antibacterial activity. Abstract. a gemini-type quaternary ammonium compound with a hydroxyl group in their spacer chain, 4,5-bis(dodecyl dimethyl ammonium bromide)-1-pentanol (called as DAP12), was immobilized on the surface of cotton fiber by using a silane coupler, tetraethoxysilane and a novel antibacterial cotton fiber (called as CF12) was prepared. Antibacterial characteristics of CF12 were investigated comparatively with [3-(trimethoxysilyl) propyl] octadecyldimethylammonium chloride(TPOAC), a mono-type quaternary ammonium salt. CF12 had excellent antibacterial characteristics in the wide range of environmental pH and temperature, which is not weakened even if 30 times repetitive use. The experimental results indicated also that CF12 has higher antimicrobial activity than TPOAC immobilized on the surface of cotton fiber against a broad range of microorganisms, and average inhibition ratio against 15 strains of gram-negative, gram-positive bacteria and yeasts is 99.0% at 30 °C and pH 6.0.

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