Title Two routes for immobilization of a hyperbranched OH-terminated polyester on a silicon surface
Date 15.08.2007
Number 15108
Abstract Stable thin films of a hyperbranched aromatic-aliphatic OH-terminated polyester (POH) were prepared on silicon substrates. We report on grafting-to processes using macromolecular (PGMA) and bifunctional low-molecular weight coupling agents (BOX). An appropriate annealing procedure was developed for the covalent immobilization. The HBP films were characterized with spectroscopic ellipsometry, drop shape analysis (DSA), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and electrokinetic measurements. The immobilized films have an uniform surface morphology and are slightly hydrophilic (a = 79°). The grafting process did not influence the chemical composition and the surface properties, which is important for the further application as functional layers in aqueous media.
Publisher Macromolecular Symposia
Citation Macromolecular Symposia 254 (2007) 240-247
Authors Reichelt, S. ; Jakisch, L. ; Simon, F. ; Grundke, K. ; Eichhorn, K.-J. ; Voit, B.
Tags grafting to hyperbranched polymers spectroscopic ellipsometry thin films solid-liquid interface aqueous-media swelling behavior hbp-oh films adsorption proteins polymers layers

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