N-Tetradecyl bromide

Tetrachloroethane, purification of, 176 Tetradecanoic acid, 938, 940, 941 n-Tetradecyl bromide, 283 1 2 3 4-Tetrahydrocarbazole, 852 Tetrahydrofuran, 271 Tetrahydrofurfuryl chloride, 896, 901 Tetrahydropyran, 271 Tetralin, dehydrogenation of, 948, 949 purification of, 949 a-Tetralone, 728, 737 Tetramethyl base, 987 pp -Tetramethyldiaminodiphenyl-methane, 987... 

Bromomethylation of arenes using 1,3,5-trioxane and hydrobromic acid is catalysed by the addition of a phase-transfer catalyst. Yields in excess of 90% are attained using (tetradecyl)trimethylammonium bromide under relatively mild conditions for a range of arenes [55]. Tetra-n-butylammonium bromide is ineffective, suggesting the catalytic effect may be micellar. 

Table 3.1 Degree of micellar dissociation, a, in solutions of n-decyl, n-dodecyl, n-tetradecyl and n-hexadecyl trimethylanunonium bromides (adapted from [49])...

Ethoxylated methylcarboxylates Propoxyethoxy glyceryl sulfonate Alkylpropoxyethoxy sulfate as surfactant, xanthan, and a copolymer of acrylamide and sodium 2-acrylamido-2-methylpropane sulfonate Carboxymethylated ethoxylated surfactants (CME) Polyethylene oxide (PEG) as a sacrificial adsorbate Polyethylene glycols, propoxylated/ethoxylated alkyl sulfates Mixtures of sulfonates and nonionic alcohols Combination of lignosulfonates and fatty amines Alkyl xylene sulfonates, polyethoxylated alkyl phenols, octaethylene glycol mono n-decyl ether, and tetradecyl trimethyl ammonium chloride Anionic sodium dodecyl sulfate (SDS), cationic tetradecyl trimethyl ammonium chloride (TTAC), nonionic pentadecylethoxylated nonylphenol (NP-15), and nonionic octaethylene glycol N-dodecyl ether Dimethylalkylamine oxides as cosurfactants and viscosifiers (N-Dodecyl)trimethylammonium bromide Petrochemical sulfonate and propane sulfonate of an ethoxylated alcohol or phenol Petrochemical sulfonate and a-olefin sulfonate... 

Abbreviations. aT = a-tocopherol, AC = aminocoumarin, ANS = l-anilino-8-naphthalenesulfonic acid, CTAB = cetyltrimethylammonium bromide, DPPC = dipalmitoylphosphatidylcholine, DPPH — l,l-diphenyl-2-picrylhydrazyl, DSHA = Ai-dansylhexadecylamine, GMO = glycerol monooleate, HC = hydrocoumarin, N,N -DOC = JV,JV -di(octadecyl)oxacarbocyanine, PC = phosphatidylcholine, p-CUO = pyrene caroboxaldehyde, SDES — sodium decyl sulfate, SDS — sodium dodecyl sulfate, STS = sodium tetradecyl sulfate. 

The particularities of molecular dynamics and local organization of micellar phase of complexes were formulated on the example of complexes of polyacrylic (PAA), polymethacrylic (PMAA) acids and polystyrenesulfonate (PSS) with dodecyl- (DTAB), tetradecyl- (TTAB and cetyltrimethylammonium (CTAB) bromides, and also of poly-N,N -dimethyldiallylammonium chloride (PDAC) and poly-N-ethyl-4-vinylpyridinium bromide (PEVP) with sodium dodecylsulfate (SDD) (formulas of polymers are presented in Scheme 2). 

Synonyms myristyltrimethylammonium bromide tetradecyl-trimethylammonium bromide N,N,N-trimethyl-l-tetra-decanaminium bromide. 

The dynamics of mixtures of surfactants with proteins is of great importance for many practical processes, such as coating of photographic films, where gelatine in mixtures with surfactants and surface active dyes adsorb at the interface. Hempt et al. (1985) studied the relaxation behaviour of gelatine solutions in presence and absence of surfactants (SDS, tetradecyl dimethyl phosphine oxide, cetyltrimethyl ammonium bromide, n-decanoic acid, perfluoro octanoic acid tetraethyl ammonium salt). 

Benzyl trimethyl ammonium hydroxide Cetrimonium bromide Dimethyl diallyl ammonium chloride Laurtrimonium bromide Laurtrimonium chloride Methyl tributyl ammonium chloride Tetrabutyl ammonium bromide Tetrabutyl ammonium chloride Tetrabutyl ammonium fluoride Tetra-n-butyl ammonium hydrogen sulfate Tetra-n-butyl ammonium hydroxide Tetrabutyl ammonium iodide Tetrabutylphosphonium acetate, monoacetic acid Tetrabutylphosphonium bromide Tetrabutylphosphonium chloride Tetraethylammonium bromide Tetraethylammonium hydroxide Tetrakis (hydroxymethyl) phosphonium chloride Tetramethylammonium bromide Tetramethylammonium chloride Tetramethylammonium hydroxide Tetramethyl ammonium iodide Tetraphenyl phosphonium bromide Tetrapropyl ammonium bromide Tetrapropyl ammonium iodide Tributylamine Tributyl phosphine Tributyl (tetradecyl) phosphonium chloride Trioctyl (octadecyl) phosphonium iodide catalyst, phase-transfer Tetraethylammonium chloride Tetraoctylphosphonium bromide Tri-n-butyl methyl ammonium chloride Tri methyl phenyl ammonium hydroxide catalyst, phenolics Triethylamine... 

Schulze-Schlarmann J, Buchavzov N, Stuixmrauch C (2006) A disjoining pressure study of foam films stabilized by tetradecyl trimethyl ammtminm bromide cl4tab. Soft Matter 2 584-594... 

Ultrasonic relaxations of tetradecyl- and hexadecyl-trimethylammonium bromide in the presence of n-pentanol are reported. Only one relaxation time is observed, assumed to be dissociation of n-pentanol from the micelle. The rate constant at zero concentration is 1.8xl0 s two orders of magnitude smaller than the value obtained for an ion of comparable size. 

Thermotropic liquid crystallinity is also presented by alkylphosphonium halides. The influence of covalently attaching hydroxymethylene to the methyl groups of methyl-tri-n-alkylphosphonium halides (the alkyl chains are decyl, tetradecyl, or octadecyl and the halide is chloride or bromide) or adding methanol as a solute to the salts on their liquid crystalline phase (smectic A2) has been studied by various experimental techniques, including NMR for determination of dipolar splittings. These systems can be used as hosts to determine solute structure from NMR spectroscopic measurements. ... 

---