Adamovski,  Serguei

A calorimetric study of non-equilibrium structures on fast cooling (100 000 K/s)

Rostock : Universität , 2010

https://doi.org/10.18453/rosdok_id00000771

http://purl.uni-rostock.de/rosdok/id00000771

Abstract:

Present work describes an ultra-fast scanning calorimeter that is capable of controlled cooling and heating at rates up to 100 000 K/s as well as isothermal measurements with time resolution of 0.1 ms. The technique was applied to study crystallization kinetics of polymers and monodisperse n-alkanes. It is shown that the bend in the isothermal crystallization kinetics curve of n-alkanes is not the transition between formations of structures with different folding indexes, but it is rather caused by the interplay of different processes with different kinetics as well as a self-poisoning effect.

Dissertation Open Access