Air separation capabilities of the membranes preared from ethyl cellulose (EC), cellulose nitrate (CN) and three types of liquid crystals (LC) were studied by the improved volumetric method.
选用乙基纤维素(EC)、硝基纤维素(CN)分别与三种液晶(胆甾醇油烯基碳酸酯COC,烷基纤维素AC、混合液晶DYC)共混,制备了两大系列空气分离复合膜。
The process conditions of electroless copper plating for nitrocellulose are optimized by orthogonal tests.
利用正交实验对硝基纤维素片化学镀铜工艺进行优化,初步确定导电性能优先时最佳工艺条件为c(Cu2+)=5g/L,c(HCHO)=5mL/L,c(NaKC4H4O6。
Crystal Structure of 4- Chloro-3 , 5-Dinitro-Tert - Butylbenzene;
4-氯-3,5-二硝基-叔丁基苯的晶体结构
Synthesis of 4,4, 7, 7-Tetranitro-D_3-Trishomocubane;
4，4，7，7－四硝基－D_3－三高立方烷的合成
Synthesis of 2,4-Dinitro-and Dicyano-Homocubanes;
2，4－二硝基和二氰基高立方烷的合成
The experimental result is discussed in detail and it is proved that the nitro group in raw material cannot be reduced into amino group entirely.
在温和条件下，α－（邻硝基苯甲酰基）环己酮经催化氢化合成了９－羟基－１，２，３，４－四氢吖啶－Ｎ－氧化物。