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?/span>1 ?/span>?/span>?/span>E?/span>?/span>?/span>?/span>?/span>?/span>


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?/span>2 U?/span>?/span>?/span>?/span>?/span>?/span>?/span>(a)?/span>?/span>TPU?/span>FTIR?/span>?/span>(b)-NHhydrogen bonding?/span>-NHfree?/span>FTIR?/span>?/span>(c)=C=O?/span>?/span>?/span>FTIR?/span>?/span>?/span>


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PCL?/span>?/span>HTPB?/span>TPU?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>HTPB?/span>?/span>?/span>?/span>?/span>?/span>?/span>PTMG?/span>PCL?/span>?/span>TPU?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>匀?/span>?/span>D?/span>l?/span>?/span>Q?/span>?/span>l?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>PTMG?/span>?/span>?/span>q?/span>l?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>l?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>PCL?/span>PTMG?/span>?/span>?/span>l?/span>?/span>?/span>?/span>q?/span>?/span>?/span>一Q?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>匀?/span>


?/span>4 ?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>(a)TPU?/span>?/span>?/span>?/span>?/span>(b)TPU?/span>?/span>?/span>?/span>


PTMG?/span>PCL?/span>?/span>?/span>?/span>?/span>?/span>?/span>HTPB?/span>TPU?/span>?/span>?/span>l?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>q?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>PCL?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>U?/span>PCL?/span>TPU?/span>l?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>PCL?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>q?/span>?/span>?/span>HTPB?/span>TPU?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>?/span>HTPB?/span>?/span>TPU?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>l?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>l?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>PTMGQ?/span>?/span>?/span>?/span>PCL?/span>?/span>HTPB?/span>TPU?/span>?/span>?/span>?/span>?/span>?/span>匀?/span>?/span>?/span>l?/span>?/span>Q?/span>l?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>匀Q?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>D?/span>?/span>?/span>?/span>?/span>?/span>?/span>Q?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>?/span>

?/strong>?/strong>q?/strong>?/strong>

https://doi.org/10.1002/app.51346

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