The chemical preparation is described of linear polyalkene ureas from aliphatic a,odiamines and carbon oxysulphide. Using chemical and physical methods, the mechanism of the poly-condensation reaction is studied and a satisfactory picture of the structure and of the mode of formation is obtained.After melt-spinning the products can be cold-stretched to form strong and flexible fibres.
Die C‐O‐Bindung im Ring des β‐Propiolactons (I) kann mit Äthylzinkmethylat selektiv gespalten werden, wobei nach Hydrolyse die Hydroxycarbonsäureester (II) und (III) entstehen.
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