Premium
Core Functionality and Scaling Behavior of Lysine Dendrimers
Author(s) -
Fritzinger Bernd,
Appelhans Dietmar,
Voit Brigitte,
Scheler Ulrich
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500320
Subject(s) - dendrimer , molar mass , hydrodynamic radius , radius , scaling , exponent , materials science , chemical physics , chemistry , molecule , polymer chemistry , polymer , organic chemistry , composite material , mathematics , geometry , linguistics , philosophy , computer security , computer science , copolymer
Summary: A scaling exponent to describe the dependence of the hydrodynamic radius as a characteristic length of the molecule on the molecular weight, has been determined for low generation dendrimers with a thiacalixarene core and lysine dendrons. The hydrodynamic radius has been calculated from the diffusion coefficient measured by pulsed‐field‐gradient NMR spectroscopy. Scaling exponents of 2.0 for the lysine monodendron, 2.3 for a dendrimer with a bifunctional core, and 3.9 for a dendrimer with a tetrafunctional core have been determined. For a given structure of the dendrons, the scaling exponent reflects the functionality of the core of the dendrimers.Hydrodynamic radius of lysine dendrons as a function of molar mass.