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以四氢呋喃(THF)与环氧丙烷(PO)共聚体(分子量约1000~2000)制成的聚氨酯弹性体具有较好的耐低温等性能,在工业上引起广泛的兴趣,这
Polyurethane elastomers made of tetrahydrofuran (THF) and propylene oxide (PO) interpolymer (molecular weight of about 1000-2000) have good low temperature resistance and have attracted widespread industrial interest