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。
剂,添加
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).
以尿素为扩链剂，
成了一系列聚氨酯脲热塑性弹性体
段
型
。
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,本文中的聚氨酯为具有不同支程度的可溶性聚。
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