Investigation on Aqueous Solution Properties of Dendrimer PPI

Abstract

Abstract: Aqueous solution properties of dendrimer PPI[Poly(propylene imine)] were studied by measuring viscosity parameters. Particularly on the extremely dilute concentration region were focused on. The adsorption constant k, critical concentration c_{a_{, intrinsic viscosity[ η ], intermolecular association constant K_m and hydrodynamic contact concentration c s were calculated. And the generation number dependence of these parameters were also studied. From the results, the unique behavior of dendrimer solution was explained preliminary. The adsorption phenomenon of polymer solution is general, and the adsorption theory is also fit for dendrimers. Furthermore, the dynamic contact concentration c s was determined by a simple viscosity method for the first time.}}

Key words: Dendrimer, Dilute solution, Adsorption, Dynamic contact concentration

CLC Number:

O631

TrendMD:

XU Min, YAN Xiao-Hu, YU Xue-Hai . Investigation on Aqueous Solution Properties of Dendrimer PPI[J]. Chem. J. Chinese Universities, 2001, 22(4): 703.

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Investigation on Aqueous Solution Properties of Dendrimer PPI

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