Title of article :
Novel monodisperse PEG-grafted polystyrene resins: synthesis and application in gel-phase 13C NMR spectroscopy
Author/Authors :
Braunshier، نويسنده , , Christian and Hametner، نويسنده , , Christian and Frِhlich، نويسنده , , Johannes and Schnِller، نويسنده , , Johannes and Hutter، نويسنده , , Herbert، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2008
Abstract :
A series of novel polystyrene-oligo(oxyethylene) graft copolymers containing monodisperse PEG units (n = 2–12) have been synthesized and examined concerning their applicability for gel-phase 13C NMR spectroscopy. A strong correlation between the graft length and the line widths in the gel-phase spectra was observed. By grafting a PEG chain with only eight units, it was possible to obtain results similar to TentaGel resin. Additionally, TOF-SIMS images were recorded in order to evaluate the homogeneity of the resin.
Keywords :
TOF-SIMS , NMR spectroscopy , solid-phase organic synthesis , PS-PEG graft copolymers
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
