Segmented polyurethanes containing amorphous or crystalline soft segments as reversible phase and crosslink points as fixed phase can exhibit shape-memory properties.
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- 聚氨酯是一种具有微相分离本体结构的多嵌段共聚物,可通过调节原料的组成和配比,得到性能各异的新型功能高分子材料。