| 초록 |
Many potential applications for dendritic polymers have been proposed. Most of the ideas focus on the peculiarities of the dendritic interior and a large number of endgroups for their rationalization. The behavior of dendritic polymer as a host is essential if they are to find success as solubilizing agents, nanoscale catalyst and drug delivery and slow release agents for perfumes, herbicides and drugs. Research is also active in applications as diverse as polymer additives, catalyst supports, thin films, laser-printing toners and Magnetic Resonance Imaging (MRI) contrast agents.These applications spring from the unusual highly branched architecture and properties of dendritic macromolecules. In addition, they have a lot of chain-ends which may take part in hydrogen-bond formation or specific interactions, so that the effect of the end-group is too large to ignore in the thermodynamic properties in dendritic polymer solutions.In this study, we hypothetically investigate liquid-liquid equilibria of dendrimer solutions.we introduce the contribution of the specific interaction to the free energy of mixing for the lattice cluster theory. The solubility increases with a number of polar end-group of dendrimer in polar solvent. Since our model takes into account both the contribution of the end-groups and the specific structure of polymer, we could apply this systematic tool to predict the phase behavior of real dendritic polymer-solvent system.
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