Authors Appelhans, D. ; Komber, H. ; Voigt, D. ; Häußler, L. ; Voit, B.
Title Synthesis and Characterization of Poly(ether amide) Dendrimers Containing Different Core Molecules
Date 31.12.2000
Number 9294
Abstract The synthesis of novel poly(ether amide) dendrimers containing different symmetrical benzenetriamides as core molecules is presented. The synthesis was carried out in a stepwise convergent manner to build up poly(ether amide) dendrons where 5-(2-aminoethoxy)isophthalic acid is the branching repeating unit. Three defined dendrons were subsequently attached to a central core. For this key reaction step O-(benzotriazol-1-yl)-N,N,N´,N´-tetramethyluronium tetrafluoroborate (TBTU) was preferably used as activating agent to form the desired amide groups. 1H/13C NMR spectroscopy, MALDI-TOF-MS, SEC, and DSC were used to characterize the obtained dendrimers. The incorporated central units had a remarkable influence on the glass transition temperatures (Tg) within the series of dendrimers.
Publisher Macromolecules
Wikidata Q57778241
Citation Macromolecules 33 (2000) 9494-9503
Tags angle neutron-scattering dendritic macromolecules physical-properties polymers acid architecture temperature complexes units

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