Neutral fraction in the hydrogenated rosin was separated from acidic fraction by DEAE-Sephadex ion exchange chromatography and the results indicated that the compositions of three products from hydrogenation of rosin ...Neutral fraction in the hydrogenated rosin was separated from acidic fraction by DEAE-Sephadex ion exchange chromatography and the results indicated that the compositions of three products from hydrogenation of rosin catalyzed by nano-Ni,raney-Ni,and Pd/C were consistent basically.The content of tetrahydro resin acids with nano-Ni and Pd/C was higher than that with raney-Ni.The neutral fraction of hydrogenated rosin in hydrogenation of rosin over nano-Ni was mostly consisted of diterpane alcohol and superfatty acid methly ester.The content of dihydroabietic-type resin acids increased rapidly during the process of hydrogenation,but the content of abietic-type resin acids decreased quickly.A great deal of tetrahydroresin adcids was generated druring the catalytic hydrogenation with nano-Ni.展开更多
Two kinds of bactericidal and adsorptive cotton fibers(BACF 1,BACF 2) were made through epoxidation, amination and quaternarization. Which were associated with the test of their bactericidal activity and adsorption ca...Two kinds of bactericidal and adsorptive cotton fibers(BACF 1,BACF 2) were made through epoxidation, amination and quaternarization. Which were associated with the test of their bactericidal activity and adsorption capacity tests showed that both functionatized cotton fibers have good adsorption capacity to Cu 2+ and antibacterial action to staphylococcus aureus and bacilluscoli . They can be regenerated for repeated use after acidification with dilute hydrochloric acid and washing and sterilization with water and 95%alcohol successively.展开更多
文摘Neutral fraction in the hydrogenated rosin was separated from acidic fraction by DEAE-Sephadex ion exchange chromatography and the results indicated that the compositions of three products from hydrogenation of rosin catalyzed by nano-Ni,raney-Ni,and Pd/C were consistent basically.The content of tetrahydro resin acids with nano-Ni and Pd/C was higher than that with raney-Ni.The neutral fraction of hydrogenated rosin in hydrogenation of rosin over nano-Ni was mostly consisted of diterpane alcohol and superfatty acid methly ester.The content of dihydroabietic-type resin acids increased rapidly during the process of hydrogenation,but the content of abietic-type resin acids decreased quickly.A great deal of tetrahydroresin adcids was generated druring the catalytic hydrogenation with nano-Ni.
文摘Two kinds of bactericidal and adsorptive cotton fibers(BACF 1,BACF 2) were made through epoxidation, amination and quaternarization. Which were associated with the test of their bactericidal activity and adsorption capacity tests showed that both functionatized cotton fibers have good adsorption capacity to Cu 2+ and antibacterial action to staphylococcus aureus and bacilluscoli . They can be regenerated for repeated use after acidification with dilute hydrochloric acid and washing and sterilization with water and 95%alcohol successively.
