Reliable Sample Preparation of the Characterization of Polymers

The analysis of polymers is executed with the aid of gel permeability chromatography. Suitable sample preparation is important in order to dissolve the polymers, however, the degradation of the material’s characteristics has to be avoided. An ideal solution for the sample preparation is the Variable-Speed-Rotor Mill PULVERISETTE 14. Using this mill, final material fineness of <80µm can be achieved. An embrittlement of the polymers with liquid nitrogen or the grinding while adding dry ice avoid the degradation.