The degree of crystallinity of solution-cast PU samples, as deduced from the WAXS spectra, exhibits a decreasing trend in the following sequence: PU1 > PU2 > PU3 > PU4 > PU5, namely with increasing of the portion of the amorphous PDLLA polyol.
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The Influence of Soft Segment Structure on the Properties of Polyurethanes.
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