The antistatic performance of synthetic fibers with mixed system of amphoteric and geminal surfactant system was studied. 研究了两性、双生表面活性剂复配体系对合成纤维抗静电性。
Allylic Geminal Diacetates as a~ 1, a~ 3 Synthon& A Convenient Synthesis of Bicyclo [ 3.3.1] nonan-9-one Derivatives and its Mechanism 烯丙基-1,1-偕二醇二醋酸酯作为a~1、a~3合成子的研究&合成双环[3.3.1]壬烷-9-酮衍生物的简便方法及其反应机理
METHODS: ① Rats in the experimental group were subjected to ultrasound-medium frequency electrotherapy with frequency of 0.8 MHz in manner of geminal pulse, the modulating frequency was 100 Hz and ultrasound intensity of 0.9 W/ cm2; 方法:①对实验组大鼠进行超声-中频电治疗,频率0.8MHz,采用连脉方式,调制频率100Hz,超声波声强0.9W/cm2;
Configurations of geminal N& electron basis set 孪函数N电子基组的组态
Palladium Catalyzed Reaction of Allylic Geminal Diacetates with Nucleophiles 钯催化烯丙基偕二醇二醋酸酯和各种亲核试剂的反应
For strong internal geminal OH groups and skeleton structure, the low-cost TS-1 catalysts have good thermal stability ( 1023K). 廉价法合成的TS-1分子筛骨架结构和孔道内末端羟基具有较强的热稳定性(1023K)。