• Research Group of Helmut Cölfen


Vom Strand zum Poster Award

Am 16.-20. September 2018 fand im Riviera Holiday Club (Varna/Bulgarien) die Sixth European Conference on Crystal Growth (ECCG6) statt. Hierbei erhielt Christian Jenewein den IUCr Journals Award für die beste Poster Präsentation.

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Control of Molar Mass Distribution in Polymers

Andreas Spinnrock and Helmut Cölfen, University of Konstanz, Germany, have combined analytical ultracentrifugation (AUC) with polymer chemistry to obtain desired broad molar mass distributions. The analytical ultracentrifugation was used to adjust a macroinitiator's concentration gradient to control the molar mass distribution after subsequent polymerization. Depending on the rotational speed, the macroinitiator forms the desired concentration gradient. It can be detected at any point by optical...

Nature’s blueprint

Based on the nanostructure of the sea urchin spines, the research team Physical Chemistry at the University of Konstanz develops cement that is significantly more fracture-resistant.

Drip by drip

An experiment at the University of Konstanz shows non-classical growth of crystals – the result will have implications for basic research as well as for practical applica-tions

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