Authors Lederer, A. ; Voigt, D. ; Appelhans, D. ; Voit, B.
Title Molar Mass Characterization and Solution Behaviour of Poly(ether amide) Dendrimers
Date 15.05.2006
Number 13848
Abstract Poly(ether amide) dendrimers with different molar masses were investigated using Size Exclusion Chromatography (SEC) with linear standard calibration and Matrix Assisted Laser Desorption/Ionization – Time-of-Flight – Mass Spectroscopy (MALDI-TOF-MS). The SEC behaviour of the dendrimers was investigated in different column systems, in pure and in mixed N,N-dimethylacetamide with water and LiCl. This behaviour was compared to linear poly(styrene) and poly(2-vinyl pyridine) standards. Kuhn-Mark-Houwink-Sakurada relationship yielded evidence about the molecular shapes of the polymers in solution and explained the different solution behaviour of the polymers. The universal calibration method was tested for its application to molar mass determination of poly(ether amide) dendrimers.
Publisher Polymer Bulletin
Citation Polymer Bulletin 57 (2006) 12 Seiten
Tags starburst dendrimers intrinsic-viscosity surface-chemistry scaling behavior contrast agents macromolecules molecules chromatography scattering complexes

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