Hydrogenation of SBS using RuCl 2(PPh 3) 3 as catalyst and PPh\-3 as ligand was studied for the first time.Hydrogenated Degree of hydrogenation of SEBS reaches 98%.RuCl 2(PPh 3) 3 which was used as catalyst has high a...Hydrogenation of SBS using RuCl 2(PPh 3) 3 as catalyst and PPh\-3 as ligand was studied for the first time.Hydrogenated Degree of hydrogenation of SEBS reaches 98%.RuCl 2(PPh 3) 3 which was used as catalyst has high activity and high selectivity (phenyl is not hydrogenated),and gel will not be formed.The band of C C was saturated.So that RuCl 2(PPh 3) 3 has high selectivity.It is shown that the thermal resistance was improved greatly by initial decomposition temperature.Rh Ru double metal new catalytic system has higher activity than Ru single metal system in hydrogenation of SBS.展开更多
Bilayer lipid membranes (BLM) formed from didodecyldimethylammonium bromide were made on the freshly exposed surface of a glassy carbon (GC) and were demonstrated by the ac impedance spectroscopy. The ion channels of ...Bilayer lipid membranes (BLM) formed from didodecyldimethylammonium bromide were made on the freshly exposed surface of a glassy carbon (GC) and were demonstrated by the ac impedance spectroscopy. The ion channels of membrane properties induced by PF -_6 were studied by the cyclic voltammetric methods. Experimental results indicated that the ion channel of BLM was open in the presence of the PF -_6 due to the interaction of PF -_6 with the BLM, while it was switched off in the absence of PF -_6. Because the ion channel behavior was affected by the concentration of PF -_6, a sensor for PF -_6 can be developed.展开更多
文摘Hydrogenation of SBS using RuCl 2(PPh 3) 3 as catalyst and PPh\-3 as ligand was studied for the first time.Hydrogenated Degree of hydrogenation of SEBS reaches 98%.RuCl 2(PPh 3) 3 which was used as catalyst has high activity and high selectivity (phenyl is not hydrogenated),and gel will not be formed.The band of C C was saturated.So that RuCl 2(PPh 3) 3 has high selectivity.It is shown that the thermal resistance was improved greatly by initial decomposition temperature.Rh Ru double metal new catalytic system has higher activity than Ru single metal system in hydrogenation of SBS.
基金ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .2 9835 12 0 )
文摘Bilayer lipid membranes (BLM) formed from didodecyldimethylammonium bromide were made on the freshly exposed surface of a glassy carbon (GC) and were demonstrated by the ac impedance spectroscopy. The ion channels of membrane properties induced by PF -_6 were studied by the cyclic voltammetric methods. Experimental results indicated that the ion channel of BLM was open in the presence of the PF -_6 due to the interaction of PF -_6 with the BLM, while it was switched off in the absence of PF -_6. Because the ion channel behavior was affected by the concentration of PF -_6, a sensor for PF -_6 can be developed.
