Prof. Dr. Hans Börner forscht auf dem Gebiet der bioinspirierten Polymerchemie und entwickelt neuartige Klebstoffe und Materialien, die sich an natürlichen Vorbildern wie Muschelproteinen orientieren. Sein Arbeitsschwerpunkt liegt der elektrochemischen Aktivierung und der kontrollierten Synthese von Polymeren mit spezifischen Oberflächenfunktionen, insbesondere durch Thiol-Catechol-Verknüpfungen. Er nutzt spektroskopische Methoden zur Materialcharakterisierung und verfolgt das Ziel, nachhaltige, recycelbare Adhäsionssysteme für industrielle und medizinische Anwendungen zu etablieren.
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Prof. Dr. Hans Börner
HU-FIS-Profil ↗EU: Monomer Sequence Control in Polymers: Toward Next-Generation Precision Materials (EURO-SEQUENCES)
company
EU: Monomer Sequence Control in Polymers: Toward Next-Generation Precision Materials (EURO-SEQUENCES)
other
EU: Monomer Sequence Control in Polymers: Toward Next-Generation Precision Materials (EURO-SEQUENCES)
other
Orthogonal Modification of Biopolymers With Variable Peptide Sequences via Ultra-Rapid Covalent Modification
university
EU: Monomer Sequence Control in Polymers: Toward Next-Generation Precision Materials (EURO-SEQUENCES)
university
Zeitraum: 12/2009 - 09/2010 Projektleitung: Prof. Dr. Hans Börner
Förderer: DFG Sachbeihilfe Zeitraum: 02/2010 - 01/2013 Projektleitung: Prof. Dr. Hans Börner
Zeitraum: 01/2011 - 07/2013 Projektleitung: Prof. Dr. Hans Börner
Nature · DOI
Progress in Polymer Science · DOI
Macromolecules · DOI
Brush macromolecules having poly( n -butyl acrylate- block -styrene) and poly(styrene- block - n -butyl acrylate) side chains have been synthesized by the “grafting from” approach using atom transfer radical polymerization (ATRP). The molecular weights of the resulting polymers were characterized by gel permeation chromatography (GPC) using refractive index and multiangle light scattering detection. The block copolymer side chains were cleaved from the backbone and analyzed by GPC, confirming the synthesis of well-defined copolymer brushes. Visualization of individual molecules by atomic force microscopy (AFM) enabled analysis of the conformation and microstructure of the brush macromolecules on mica surface. The brushes with the p n BuA core were almost fully stretched, while the inverted structure with the pS core exhibited longitudinal contraction compared to the contour length of the main chain. In addition, the poly( n -butyl acrylate- block -styrene) brushes demonstrated a characteristic necklace morphology which was attributed to the interplay between the extension of the p n BuA core and microphase segregation of the pS tails.