On the other side, the dominating hydrogen bonds in TPU including hydrogen bonds of amino with carbonyl and urethane alkoxyl oxygen of hard segments exist mainly within hard segments domains.

• 结果表明，大约有30%25的硬段混溶进入软段相与软段的醚氧产生氢键作用，主要的氢键包括硬段羰基与硬段氨基之间的氢键以及硬段烷氧与硬段氨基之间的氢键，仍发生在硬段岛区内。