Electric Literature of 2082-84-0, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 2082-84-0, Name is N,N,N-Trimethyldecan-1-aminium bromide,introducing its new discovery.
Using the Taylor dispersion technique, diffusion coefficients for pyrene solubilized in micelles of decyl-, dodecyl-, tetradecyl- and hexadecyl-trimethylammonium bromides (C10TAB, C12TAB, C14TAB and C16TAB) have been measured in water and aqueous NaBr solutions at 298.2 and 308.2 K.The values obtained can be regarded as tracer diffusion coefficients for the micelles because essentially all pyrene molecules are solubilized in the micelles.In all cases the diffusion coefficients decrease with increasing concentration of the surfactants.The results were fitted by D = Dc.m.c.<1-kD(c-c.m.c)> or D = Dc.m.c.<1-k'DPhi>, where Dc.m.c. is the diffusion coefficient at the critical micelle concentration (c.m.c.) and Phi is the volume fraction of the micelles.In cases of C10TAB and C12TAB micelles, the Dc.m.c. values are close to those expected from the hydrated radii of the micelles.In the cases of C14TAB and C16TAB micelles in water, the Dc.m.c. values are substantially smaller than those expected from the radii of the hydrated micelles.In NaBr solutions, Dc.m.c. values increase with increasing concentration of NaBr and reach maxima at 0.01-0.03 mol dm-3 NaBr for C14TAB and C16TAB micelles.The effects of electrostatic interactions on the tracer duffusion of the micelles are dicussed.
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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI