Abstract
The crystallization and melting behaviour of linear Low density polyethylenes, with propene and 1-octene as comonomers, has been studied by differential scanning calorimetry and dynamic SAXS and WAXS, using synchrotron light, under identical conditions as in the DSC. Preliminar analysis of the experimental data makes clear that the combination of these techniques is a powerful tool in the understanding of crystallization and melting phenomena as observed in DSC-traces. A molecular segregation process has been detected resulting in the crystallization of part of the material below the isothermal crystallization temperature Tc. The influence of Tc and the comonomer concentration on this segregation has been explored.
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