Regensburg 2007 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: POSTER: Polymer Physics

CPP 8.31: Poster

Montag, 26. März 2007, 16:00–18:00, Poster B

Isothermal crystallization of PVDF using ultra-fast nano-calorimetry — •Evgeny Zhuravlev¹, Arkadiusz Gradys², Alexander Minakov^1,3, and Christoph Schick¹ — ¹Institute of Physics, University of Rostock, Germany — ²Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland — ³General Physics Institute, Moscow, Russia

By means of ultra fast thin-film nano-calorimetry, we were able to perform non-isothermal crystallization of poly(vinylidene fluoride) at cooling rates up to 100000 K/s. The new technique allows us to study samples of about 12 ng mass. Sample mass was estimated from measured heat capacity. At rates 12000 K/s and higher we were able to produce amorphous PVDF. At successive heating we observe so called cold crystallization. Isothermal crystallization of PVDF was investigated. Crystallization kinetics was studied at millisecond time scale. Experiments were performed from melt and from amorphous state of PVDF.