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Authors
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Fritzinger, B. ; Appelhans, D. ; Voit, B. ; Scheler, U.
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Title
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Core Functionality and Scaling Behavior of Lysine Dendrimers
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Date
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19.10.2005
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Number
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13598
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Abstract
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<B>Summary:</B> 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.
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Publisher
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Macromolecular Rapid Communications
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Wikidata
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Citation
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Macromolecular Rapid Communications 26 (2005) 1647-1650
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DOI
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https://doi.org/10.1002/marc.200500320
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Tags
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dendrimers diffusion scaling exponent hydrodynamic size pfg nmr nuclear-magnetic-resonance field gradient intrinsic-viscosity internal structure pamam dendrimers spin echoes diffusion dynamics systems sans
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