嵌段聚氨酯纤维 segmented polyurethane fibre
嵌段聚氨酯脲 SPUU
有机硅聚醚嵌段聚氨酯 polysiloxane-polyether block polyurethane
合成了一种新的聚脂型脂肪族多嵌段聚氨酯(ASPU)系列样品。
A new series of aliphatic segmented polyurethanes (ASPU) had been prepared and their infrared spectra were assigned.
多嵌段聚氨酯硬段含量的增加，加强了SPU分子间的相互作用，同时也减小了共混物两组分的相容性。
When increasing hard segment content, the interaction between SPU moleculars is intensified whereas the miscibility of the blends in decreased consequently.
通过在聚氨酯主链上引入亲水的聚乙二醇嵌段来赋予压敏胶亲水性。
Especially, polyethylene glycol (PEG) on the main chain of the polyurethane can offer good hydrophilicity.
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