Tetradecylammonium bromide

The solubilizing power of a tetradecylammonium bromide-sodium octane sulfonate mixture for equal amounts of water and hydrocarbon at 50°C is less than that of the individual components and decreases sharply as the surfactant... 

Hayakawa K, Santerre JP, Kwak JCT. Study of surfactant-polyelectrolyte interactions. Binding of dodecyl- and tetradecylammonium bromide by some carboxylic polyelectrolytes. Macromolecules 1983 16 1642-1645. 

In addition to electrostatic stabilization, steric stabilization was found to be an important factor in the microemulsion polymerization of MMA. A comparative stability study was performed on MMA polymerization in tetradecylammonium bromide (TTAB) or stearyltrimethylammonium chloride (STAC) microemulsions [128]. A strong increase in particle size was observed above 50% conversion for the former system, whereas the size remained rather constant up to 98% conversion for the latter. Similarly, ftp increased from 1.75 to 35.6 when the conversion went from 61% to 93% for TTAB systems but remained around 1.4 for STAC systems. These results give clear evidence of the occurrence of particle... 

Phenoxy acid herbicides, sulfonyl ureas, quaternary ammonium derivatives (quats), and aryloxy propanoic acids are the main classes of compounds subjected to capillary zone electrophoresis (CZE). Triazines are also separated using nonaqueous CZE, while low pfCa characterized chlorotriazines require an ion-pair-like solubilization using cationic surfactants (tetradecylammonium bromide, dodecyltrimethyl-ammonium bromide). Chiral selectors are added in CZE for obtaining enantioselectivity. Chiral selectors used for herbicide enantiomeric discrimination are vancomycin, y-cyclodextrin, ethyl carbonate -cyclo-dextrin, cyclohexyl-alkyl-)S-D-maltoside, sulpropyl ether a-cyclodextrin, and hexakis(2,3-di-0-methyl)-a-cyclodextrin. 

Capillaiy zone electrophoresis (c.z.e.) separation of anions including carboxylates of sugar acids was achieved in a 3 minute run with indirect u.v. detection using a complex co-ion as an electroosmotic flow modifter that dynamically coats the capillary walls. " Inositol mono-, bis-, tris- and hexakis-phosphates were similarly separated using a tetradecylammonium bromide - borate buffer combination. Inositol 1- and 2-phosphate were easily separated." ... 

Increasing temperature decreases the solubilization capacity of non-ionics even though the micelles grow in size [160], but if the molar ratio of steroid to surfactant (and not micelle) is calculated this value increases for steroids in polysorbate 40 and tetradecylammonium bromide (TDABr) [165] (see Table 6.21). This topic is further discussed in Section 5.3.3. 

Tetradecylammonium hexafluorophosphate, Dec4NPFe, and tetradecyl-ammonium bromide, Dec4NBr, (Dec4N as counter ions) are used for the reduction of PMT [255]. 

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