Premium
Synthesis, Surface and Antimicrobial Activities of Novel Cationic Gemini Surfactants
Author(s) -
Ding Zhaoyun,
Fang Shimin
Publication year - 2015
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-015-1734-2
Subject(s) - cationic polymerization , chemistry , solubility , micelle , monomer , pulmonary surfactant , critical micelle concentration , antimicrobial , antibacterial activity , antifungal , aqueous solution , polymer chemistry , organic chemistry , bacteria , polymer , medicine , biochemistry , dermatology , biology , genetics
A series of novel cationic gemini surfactants [C n H 2 n +1 –O–CH 2 –CH(OH)–CH 2 –N + (CH 3 ) 2 –(CH 2 ) 2 ] 2 ·2Br − [ 3a ( n = 12), 3b ( n = 14) and 3c ( n = 16)] having a 2‐hydroxy‐1,3‐oxypropylene group [−CH 2 –CH(OH)–CH 2 –O–] in the hydrophobic chain have been synthesized and characterized. Their water solubility, surface activity, foaming properties, and antibacterial activity have been examined. The critical micelle concentration (CMC) values of the novel cationic gemini surfactants are one to two orders of magnitude smaller than those of the corresponding monomeric surfactants. Furthermore, the novel cationic gemini surfactants have better water solubility and surface activity than the comparable [C n H 2 n +1 –N + (CH 3 ) 2 –(CH 2 ) 2 ] 2 ·2Br − ( n ‐4‐ n ) geminis. The novel cationic gemini surfactants 3a and 3b also exhibit good foaming properties and show good antibacterial and antifungal activities.