The effect of using PBO and phthalandione as a combinative extender on the extension is tested.
并与苯酐联用,测定了联用效果。
,添加物The effect of using PBO and phthalandione as a combinative extender on the extension is tested.
并与苯酐联用,测定了联用效果。
And two new segmented poly(urethaneureas) were prepared from poly(tetramethylene glycol)(PTMG) or polyadipate of 1,4 butanediol(PBA), MDI and Urea(as chain extender).
以尿素
扩
，
成了一系列聚氨酯脲热塑性弹性体及其硬段
型化物。
Study of low angle laser light scattering indicats, in a certain limits of extender amount, the polyurethane have a amorph pseudomicrostructure...
溶解测定结果表明,本文中的聚氨酯
有不同支化程度的可溶性聚物。
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