第二种聚酰亚胺聚合物是芳香族四酸二氢化物与芳香族二异氰酸酯反应生成的。
The second polyimide polymer is prepared with aromatic tetracid dihydride and aromatic diisocyanate.
为提高芳香族硝基化合物氢化催化剂的性能，在单铜催化剂中引入稀土元素。
Rare earths were introduced into mono-copper catalyst to improve the performance of hydrogenation catalyst for aromatic nitro-compounds.
本文研究了七种芳香族碳氢化合物的气相IR激光化学，主要是等离子体化学。实验说明。
IR laser chemistry (mainly plasma chemistry) of gaseous aromatic hydrocarbons was studied with a pulsed TEA-CO_2 laser.
应用推荐