Dialkyldimethylammonium halides

Total Carbon Na ot Alkyl Chain Dialkyldimethylammonium Halides... 

Fig. 13. Aggregation numbers as function of number of carbon atoms in alkylchains of di- (n-alkyl) sodium-sulfosuccinates and dialkyldimethylammonium halides. [J. Colloid interface Sci. 35, 636 (1971))...

Abstract Vesicles prepared with synthetic amphiphiles constitute useful microreactors, where reaction rates can be delicately controlled. Here we review our work on quantitative analysis of reaction rates in vesicles and show that reaction at several vesicular sites can be probed and controlled. Vesicles prepared with dialkyldimethylammonium halides, (DODA)X, can accelerate bimolecular reactions by more than a million fold. Quantitative analysis of the vesicular effect on ester thiolysis, using a pseudophase ion exchange formaUsm, suggests that the rate increase is primarily due to reagent concentration in the bilayer and interfacial effects on ion distribution, as well as contributions from enhanced nucleophile reactivity. Vesicle-containing solutions exhibit a variety of potential reaction sites the inner and outer surfaces, bilayer and internal aqueous compartment. 

Dialkyl (C12-C18) dimethylammonium chloride, 24 147 hair cleaner ingredient, 7 850t Dialkyldimethylammonium quaternary higher alcohols, 2 21 Dialkylgold(III) halides, 12 708 Dialkylhydrazines, unsymmetrical, 13 571 Dialkyl peroxides, 14 281 18 434, 436-448 a-oxygen-substituted, 18 448-460 chemical properties of, 18 439-444 decompositions of, 18 441 physical properties of, 18 436-439 primary and secondary, 18 439,... 

Monoalkyltrimethylammonium salts, e.g. cetyltrimethylammonium bromide. Monoalkyldimethylbenzylammonium chloride, e.g. benzalkonium chloride. Dialkyldimethylammonium salts, e.g. didecyldimethylammonium halides. 

Monoalkyldimethylbenzylammonium chloride, e.g. Benzalkonium chloride (18.1.2.). Dialkyldimethylammonium salts, e.g. didecyldimethylammonium halides (18.1.3.). Heteroaromatic ammonium salts (one R stands for a long-chain alkyl group, and the remaining three R are components of an aromatic system such as p5Tidine, quinoline or isoquinoline) e.g. cetylpyridinium halide and alkylisoquinolinium bromide (18.1.8.). 

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