Structural Transition of Unimolecular Reversed Micelle

Hyperbranched polymers and dendrimers have been used as the key starting materials for the preparation of a globular amphiphile with a unimolecular micellar property. However, recent research has indicated that some of the amphiphilic dendritic polymers do not become a 

The solubility characteristics of 23a-f with certain DS values were examined using various solvents and are summarized along with that of PolylOa in Table 7.7. PolylOa was soluble in water and methanol, but insoluble in other organic solvents, while 23a-f were soluble in chloroform and acetone, but insoluble in water. The solubilities of 23a-f were also changed by the DS values, that is, 23c, 23e, and 23f with high DS values were soluble in toluene and ethyl acetate, while 23a, 23b, and 23d with low DS values were insoluble or partially soluble in toluene and ethyl acetate. 

To investigate the encapsulation properties of 23a-f, the encapsulation characteristics toward the water-soluble dye, rose bengal (RB), were examined using the solid/liquid 

Polymer DS mol% H2O MeOH Acetone CHCI3 AcOEt Toluene 

Examined by using 5 mg of polymer in 0.5 mL of solvent at room temperature (+ + soluble + swelling — insoluble). 

---