polyester-amide

基本解釋

Polyester amide polyols were synthesized from adipic acid and RDEA which was the mixed polyol of aliphatic alcohol amide prepared with rapeseed oil and diethanolamine.
以菜籽油和二乙醇胺為原料制備了脂肪醇酰胺混合多元醇RDEA,進(jìn)一步和己二酸等原料反應(yīng)合成了系列的聚酯酰胺多元醇,并對兩類多元醇進(jìn)行了表征。
Synthesis of Vegetable Oil Based Polyester Amide Polyols and Its Application in Water-borne PU
植物油基聚酯酰胺多元醇的合成及其在水性聚氨酯中的應(yīng)用
He drank off the flagon of wine amid their cheers.
在他們的喝彩聲中他喝了一大瓶酒。
He sat down amid deafening applause.
他在震耳欲聾的掌聲中就坐。
He kept calm amid all these excitements.
他在這些使人激動的事件中保持鎮(zhèn)靜。