Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 13: POSTER New Experimental Techniques

CPP 13.6: Poster

Dienstag, 28. März 2006, 17:00–19:00, P3

New fast calorimeter for intermediate scanning rates — •Sergey Adamovsky and Christoph Schick — Universität Rostock, Institut für Physik, Universitätsplatz 3, 18051 Rostock

For thermal measurements there are very sensitive differential scanning calorimeters available. The problem is that only relatively slow processes can be studied using a commercial device: heating rates of more than 300 K/min (5 K/s) are hardly reachable. On the other side, ultra-fast calorimetry was developed in the last years. These devices are suitable for very small samples and their heating rates only start at about 100K/s. So there was a gap from 5 K/s to 100 K/s. To cover this middle-range a new calorimeter was developed. The sensor is a 0.15 mm thick glass slide (a microscope cover slip was used); a Ni-heater and a Cu-Constantan (Type "T") thermocouple were deposited on the glass. The sensor is connected to a computer-controlled amplifier.

Application of the calorimeter for polymer materials is presented. Drying and solidification of modern paints as well as crystallization study of polymeric materials are presented.