A novel p-acetaminophen resin(named as GQ-1) was synthesized with chloromethylated polystyrene and p-acetaminophen.It can be used without any wetting process.The objective of this work was to study the adsorption pe...A novel p-acetaminophen resin(named as GQ-1) was synthesized with chloromethylated polystyrene and p-acetaminophen.It can be used without any wetting process.The objective of this work was to study the adsorption performances for vanillin onto GQ-1 with two kinds of the hydrogen bond site of acetamino group and hydroxyl group.The results showed that the adsorption property of vanillin onto GQ-1 was superior to XAD-4,H103,NDA150,and NDA88.The adsorption capacity of vanillin onto GQ-1 is not greatly discrepant until the solution pH is higher than 5.31.The saturated adsorption quantity of vanillin was up to 141.32 mg/mL(wet resin) according to the dynamic adsorption and desorption experiments at 293 K.The resin could be regenerated by 7 BV ethanol.展开更多
以对氨基苯酚和乙酸酐为原料,以锌粉为抗氧化剂,以活性炭为脱色剂,以稀乙酸为反应介质,采用微波辐射技术合成对乙酰氨基酚。探索了不同反应条件对产率的影响。实验表明,当n(对氨基酚)∶n(乙酸酐)为1∶1.3,反应介质稀乙酸体积浓度为4%,...以对氨基苯酚和乙酸酐为原料,以锌粉为抗氧化剂,以活性炭为脱色剂,以稀乙酸为反应介质,采用微波辐射技术合成对乙酰氨基酚。探索了不同反应条件对产率的影响。实验表明,当n(对氨基酚)∶n(乙酸酐)为1∶1.3,反应介质稀乙酸体积浓度为4%,微波辐射功率为500 W,反应时间为17 m in,反应温度为105℃时,产率可达82.1%。展开更多
基金support by the Nature Science Foundation of Educational Bureau of Hunan Province(No.09C198)
文摘A novel p-acetaminophen resin(named as GQ-1) was synthesized with chloromethylated polystyrene and p-acetaminophen.It can be used without any wetting process.The objective of this work was to study the adsorption performances for vanillin onto GQ-1 with two kinds of the hydrogen bond site of acetamino group and hydroxyl group.The results showed that the adsorption property of vanillin onto GQ-1 was superior to XAD-4,H103,NDA150,and NDA88.The adsorption capacity of vanillin onto GQ-1 is not greatly discrepant until the solution pH is higher than 5.31.The saturated adsorption quantity of vanillin was up to 141.32 mg/mL(wet resin) according to the dynamic adsorption and desorption experiments at 293 K.The resin could be regenerated by 7 BV ethanol.
文摘以对氨基苯酚和乙酸酐为原料,以锌粉为抗氧化剂,以活性炭为脱色剂,以稀乙酸为反应介质,采用微波辐射技术合成对乙酰氨基酚。探索了不同反应条件对产率的影响。实验表明,当n(对氨基酚)∶n(乙酸酐)为1∶1.3,反应介质稀乙酸体积浓度为4%,微波辐射功率为500 W,反应时间为17 m in,反应温度为105℃时,产率可达82.1%。