The structure of a new triterpenoid, named gonolactone A, isolated from the fruiting body of Ganoderma lucidum,was determined by spectroscopic methods. This compound was identified as 7 beta -hydroxy-3. 11,15-trioxo-l...The structure of a new triterpenoid, named gonolactone A, isolated from the fruiting body of Ganoderma lucidum,was determined by spectroscopic methods. This compound was identified as 7 beta -hydroxy-3. 11,15-trioxo-lanosta-8-en-24 --> 20 lactone.展开更多
The cleavage and formation of the di sulfide bond of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) were examined in an aqueous solution of pH value from 0 to 14 with and without polyaniline (PAn), The redox reaction of DMcT...The cleavage and formation of the di sulfide bond of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) were examined in an aqueous solution of pH value from 0 to 14 with and without polyaniline (PAn), The redox reaction of DMcT was accelerated by PAn in acidic condition. The cell using this anodic material was set-up and characterized in aqueous electrolyte.展开更多
The properties of the films formed in the electrolyte of PC/DME LiClO4 on two kinds of carbon materials were examined by cathodic polarization measurements. The result suggested that the films on both carbon electrode...The properties of the films formed in the electrolyte of PC/DME LiClO4 on two kinds of carbon materials were examined by cathodic polarization measurements. The result suggested that the films on both carbon electrodes have different morphology which resulted in the different cen performance of the two carbon anodes.展开更多
The preliminary work indicated that passive film is the most important factor influencing cell performance of carbon anode, and the carbon and solvent used govern cell performance by forming the passive film of differ...The preliminary work indicated that passive film is the most important factor influencing cell performance of carbon anode, and the carbon and solvent used govern cell performance by forming the passive film of different properties. A in situ XRD result is also presented.展开更多
A new lanostane-type triterpenoid, ganoderic acid DM was isolated from the cultured fruiting body of G. lucidum. The structure of ganoderic acid DM (1) was determined by spectral data. It was ldentifled as 3. 7-dioxo-...A new lanostane-type triterpenoid, ganoderic acid DM was isolated from the cultured fruiting body of G. lucidum. The structure of ganoderic acid DM (1) was determined by spectral data. It was ldentifled as 3. 7-dioxo-8, 24E-dien-lanosta-26-oic acid.展开更多
New comblike polymers(CP) have been synthesized by reacting monomethyl ether of polyethylene glycol(PEGME) with poly(methyl vinyl ether-alt-maleic anhydride)(MA) and endcapping the residual carboxylic acid with methan...New comblike polymers(CP) have been synthesized by reacting monomethyl ether of polyethylene glycol(PEGME) with poly(methyl vinyl ether-alt-maleic anhydride)(MA) and endcapping the residual carboxylic acid with methanol. Butanone was selected as a solvent for the esterification reaction in order to obtain a completely soluble product. They were characterized by IR, C-13 NMR and elemental analysis.展开更多
文摘The structure of a new triterpenoid, named gonolactone A, isolated from the fruiting body of Ganoderma lucidum,was determined by spectroscopic methods. This compound was identified as 7 beta -hydroxy-3. 11,15-trioxo-lanosta-8-en-24 --> 20 lactone.
文摘The cleavage and formation of the di sulfide bond of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) were examined in an aqueous solution of pH value from 0 to 14 with and without polyaniline (PAn), The redox reaction of DMcT was accelerated by PAn in acidic condition. The cell using this anodic material was set-up and characterized in aqueous electrolyte.
文摘The properties of the films formed in the electrolyte of PC/DME LiClO4 on two kinds of carbon materials were examined by cathodic polarization measurements. The result suggested that the films on both carbon electrodes have different morphology which resulted in the different cen performance of the two carbon anodes.
文摘The preliminary work indicated that passive film is the most important factor influencing cell performance of carbon anode, and the carbon and solvent used govern cell performance by forming the passive film of different properties. A in situ XRD result is also presented.
文摘A new lanostane-type triterpenoid, ganoderic acid DM was isolated from the cultured fruiting body of G. lucidum. The structure of ganoderic acid DM (1) was determined by spectral data. It was ldentifled as 3. 7-dioxo-8, 24E-dien-lanosta-26-oic acid.
文摘New comblike polymers(CP) have been synthesized by reacting monomethyl ether of polyethylene glycol(PEGME) with poly(methyl vinyl ether-alt-maleic anhydride)(MA) and endcapping the residual carboxylic acid with methanol. Butanone was selected as a solvent for the esterification reaction in order to obtain a completely soluble product. They were characterized by IR, C-13 NMR and elemental analysis.
