Micro supramolecular aggregates

Supramolecular Aggregates, Also Termed Micro Reactors 19... 

This chapter describes the synthesis, properties, and biomedical applications of cyanine and squaraine dyes encapsulated in CDs, CBs, Leigh-type tetralactam macrocycles, aptamers, and micro- or nano-particles. The optical and photochemical properties of supramolecular guest-host nanostructures that are based on intra-and intermolecular complexes of crown-containing styryl dyes with metal cations, and aggregates of carbocyanine dyes are discussed in a separate review [18]. 

Polystyrene (PS) is the simplest carbon-chain polymer, which contains a phenyl ring. This polymer contains no heteroatoms and is readily soluble in most organic solvents this makes it possible to use its solutions to assess the effect of the spatial organization of macromolecules (conformation) on the micro structure of the carbon obtained, for it is known that the change in fumed carbon structure may be caused by a difference in the supramolecular structure of carbonization precursors [12]. According to Ref.[13], the mean size of aggregates for solutions of PS in ethyl acetate with a concentration of 0.25 g/100 mL is 1000 A at 1.5g/100 mL concentration, it is 4000 A, and for 5.0 g/100 mL it is 890 A, their number (N10"9/sm"3) being 0.017, 0.27 and 6.88 respectively. 

That is why various supramolecular heterogeneities in oligomer liquids such as aggregates, associates or cybotactic groups are not microfhases . The term micro can be used here, but the term phase in inapplicable on the basis of Gibbs approximation. 

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