Polyhydroxy monocarboxylic

Homopolymers of branching multifunctional monomers have also been reported. Aliphatic polyesters were prepared by condensing a polyhydroxy monocarboxylic acid of formula (HO)n-R-COOH, for example, 2,2-di(hydroxymethyl)propionic acid, in either DMF or xylene in the presence of an acid catalyst with azeotropic distillation of water. Since these polymers have a large number of functional groups, they are... 

The aggregation behavior of C21-DA salt in dilute electrolyte medium appears to resemble that of certain polyhydroxy bile salts (25,16). That C21-DA, with a structure quite different from bile acids, should possess solution properties similar to, e.g., cholic acid is not entirely surprising in light of recent conductivity and surface tension measurements on purified (i.e., essentially monocarboxylate free) disodium salt aqueous solutions, and of film balance studies on acidic substrates (IX) The data in Figure 3 suggest that C21-DA salt micelles Incorporate detergents - up to an approximate weight fraction of 0.5 -much like cholate Incorporates lecithin or soluble... 

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