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.
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。
Polyethylene glycol (PEG), which was introduced on the polyurethane chain, can offer good hydrophilicity to the PSA.
研究了溶剂在高分子互穿网络膜和嵌段共聚的聚氨酯膜中的传递过程。
Transport of solvent in interpenetrating net membrane and block copolymer membrane is studied.
研究了溶剂在高分子互穿网络膜和嵌段共聚的聚氨酯膜中的传递过程。
Transport of solvent in interpenetrating net membrane and block copolymer membrane is studied.
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