TIT# Visualisation of the structure transfer between an oriented polymer melt
     and the semi-crystalline state
AUT# Stribeck, Norbert; Bayer, Rüdiger; Bösecke, Peter; Almendarez Camarillo,
     Armando;
SOU# Polymer (2005), 46(8), 2579-2583 
LOC# xv088
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ABS# Nanostructure evolution of highly oriented polyethylene during cautious
     melting and crystallisation is investigated with high time resolution by
     means of small-angle X-ray scattering (SAXS) and wide-angle X-ray
     scattering (WAXS). The two-dimensional SAXS patterns are transformed to
     the multidimensional chord distribution function (CDF) in physical space.
     The results are continuous smooth movies of the structure evolution which
     elucidate the mechanisms of structure evolution. We find that
     crystallisation is preceeded by a peculiar nanostructure which we
     associate to the network of the entangled chains in the melt. This
     structure holds the key for the understanding of crystallite arrangement.
     The next stages of structure evolution are a fast lateral growth of
     lamellae from nuclei located at the ends of the entangled strands towards
     regions with lower entanglement density; thickness growth away from the
     entanglement strands accompanied by increase of perfection within the
     layers; and, finally, the crowding of the remnant amorphous phase by
     swarms of secondary crystalline blocks that form short-range networks
     with each other.