Surfactants multifunctional

Due to their multifunctional properties ether carboxylic acids have been described as very useful surfactants for metalworking fluids [66]. Especially in... 

We are currently investigating the synthesis and characterization of such molecules for numerous different applications such as surfactants, cosmetics, and toner resins. A point of interest in the preparation and characterization of multifunctional hyperbranched molecules is the compositional heterogeneity (how many and what type of functional groups are on a particular hyperbranched po-lyesteramide molecule) and the positional heterogeneity (spatial distribution of the functional groups on a particular hyperbranched polyesteramide molecule). 

The field of mesoporous materials has developed rapidly since the first reports on these materials in 1992, as these last examples show. The trend is to utilize inexpensive, multifunctional micelle- or aggregate-forming surfactants or templates which may adopt many different liquid crystal-like configurations in aqueous solution. Formation of a silicate structure with well-defined pore dimensions and connectivity may then be accomplished by the appropriate choice of the synthetic conditions. Additional microporous and macroporosity may be incorporated by using macroporous host materials, as in the case of Stucky of the work by and coworkers, who created mesophases with unprecedented architecture.[47]... 

Commercial lecithins are multifunctional food ingredients. The combined hydrophilic and hpophihc properties of phospholipid molecules give them surface-active effects in many applications. As surfactants, they can exhibit a variety of functions common to other surfactants while they also have unique functionalities of their own. 

We present here an overview of production of these three synthons and their transformations into a wide range of products, from surfactants to multifunctional building-blocks, natural and bioactive products. 

A multifunctional amphoteric surfactant serves as a cleaning and foaming agent and an antifungal agent to treat or prevent dandruff... 

Cromeen. [Croda Chem. Ltd.] Substituted aftylamine deriv. lanolin acids multifunctional surfactant, foamer, detergent, emulsifier for shampoos, detergents, cleansers, shaving foams. 

Recent AOS synthesis leads to multifunctional surfactants that are less sensitive to water hardness than most anionics, and are better biodegradable than LAS. The C10-16 a-olefin-... 

A new family of polysilsesquioxane colloids was synthesized by hydrolytic condensation of different functional amphiphilic silanes without any additional surfactants [58-60]. To choose a suitable monosubstituted silane, we looked for the combination of a functional group, which would be able to interact with metal compounds, and a hydrophobic part, which would self-assemble in an aqueous medium. We expected that a sol-gel reaction of such a precursor in water would yield multifunctional materials with internal ordering if the hydrophobic tail is sufficiently long. In this way, polysilsesquioxane colloids... 

Of the various surface active chemistries currently available, this paper will mainly concentrate on a class of materials called Silicone Polyethers. This family of copolymers is used to provide multifunctional benefits in water borne systems. The main uses of silicone polyethers in inks and coatings include de-foaming, de-aerating, improved substrate wetting, levelling and enhanced slip properties (1,2). The three most common molecular structures for silicone surfactants are rake type copolymers, ABA copolymers and trisiloxane surfactants. These are illustrated in Figs 1,2 and 3 respectively and the performance of these structures will be described in two types of coatings ... 

Isocyanate Foaming. Alternatively, PAI foams can be prepared by the reaction of multifunctional isocyanates with multifimctional imido carboxylic acids. " The reaction is catalyzed by tertiary amines. Best results are obtained with polymeric diisocyanates from the MDI type. Surfactants... 

With the beginning " of dendrirner chemistry in 1985, and the successful construction of branched, multifunctional architectures such as polyols 3 and 4 (Fig. 2), the logical application of supramoleeular chemistry to this field was obvious, as noted by the original introduction " of the ierm unimolecular micelle." It would, however, be several years before the actual proof-of-concept for covalently connected surfactant moieties was unequivo-eally demonstrated - in the all-hydrocarbon micellane series this was the first example of a unimolecular micelle that incorporated the lipophilic/hydrophilic features of a classical micelle into a single molecule. Pivotal to its construction was access to monomers possessing... 

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