A novel aliphatic sulfonie acid ion exchange resin was prepared from ethylenediamined polystyrene(PS-acyl-EDA),2-acrylamido-2-methylproanesulfonic acid(AMPS)by Michael reaction.This kind of resin has a longer chain th...A novel aliphatic sulfonie acid ion exchange resin was prepared from ethylenediamined polystyrene(PS-acyl-EDA),2-acrylamido-2-methylproanesulfonic acid(AMPS)by Michael reaction.This kind of resin has a longer chain than conventional sulphonic polystyrene resin,that is,the former is easier to react with other compound.The effect of the reaction time,reaction temperature,catalyst amount,reagent amount and the charge ration on reaction result were discussed.Under the optimum condition,the maximum loading of the sulfonie acid ion exchange resin could be up to 1.15 mmol·g-1 resin.The product was characterized with FT-IR.The filling material of chromatographic column could be prepared by this method.展开更多
以2-丙烯酰胺-2-甲基丙磺酸(AMPS)为单体、CuCl/N,N,N′,N′-四甲基乙二胺(TMEDA)为催化体系,氯乙酰化聚苯乙烯微球(PS-acyl-Cl)为大分子引发剂,经原子转移自由基聚合反应(ATRP),于微球表面接枝聚脂肪族磺酸(PAMPS)链段获得脂肪族磺酸...以2-丙烯酰胺-2-甲基丙磺酸(AMPS)为单体、CuCl/N,N,N′,N′-四甲基乙二胺(TMEDA)为催化体系,氯乙酰化聚苯乙烯微球(PS-acyl-Cl)为大分子引发剂,经原子转移自由基聚合反应(ATRP),于微球表面接枝聚脂肪族磺酸(PAMPS)链段获得脂肪族磺酸基强酸性阳离子交换树脂(PS-g-PAMPS)。考察了反应温度、溶剂体系、pH值、催化剂、反应时间等条件对接枝反应的影响,在优化的反应条件下,使用氯乙酰基担载量为3.82 mmol g 1的PS-acyl-Cl,10 h可获得担载量为1.99 mmol g 1的PS-g-PAMPS。产物经过红外,元素分析表征。该PS-g-PAMPS较传统的磺酸基树脂有较长的手臂长度,位阻小,易于和其它物质反应,TG分析显示具有很好的热稳定性。展开更多
朗盛从2010年4月起在德国比特菲尔德基地大规模生产新一代高性能凝胶型阳离子交换树脂。Lewatit MonoPlus S 108和Lewatit MonoPlus S 108H这两种新型离子交换树脂,具有优异的浸出性能和化学稳定性,是离子交换装置实现有效运行和商业效...朗盛从2010年4月起在德国比特菲尔德基地大规模生产新一代高性能凝胶型阳离子交换树脂。Lewatit MonoPlus S 108和Lewatit MonoPlus S 108H这两种新型离子交换树脂,具有优异的浸出性能和化学稳定性,是离子交换装置实现有效运行和商业效率的关键所在。展开更多
研究了732型改性树脂脱氟剂的制备方法和离子交换方式、酸洗、铁交换量,以及再生和其他共存离子等对脱氟剂饱和吸附量的影响,同时探讨了732型改性树脂脱氟剂可能的脱氟机理。结果表明,采用酸洗和动态交换方式可显著提高该脱氟剂的脱氟效...研究了732型改性树脂脱氟剂的制备方法和离子交换方式、酸洗、铁交换量,以及再生和其他共存离子等对脱氟剂饱和吸附量的影响,同时探讨了732型改性树脂脱氟剂可能的脱氟机理。结果表明,采用酸洗和动态交换方式可显著提高该脱氟剂的脱氟效果;共存离子和再生对该脱氟剂的脱氟效果无明显影响,树脂的最佳载铁量为69.39 m g/g,最大饱和吸附量为12.36 m g/g。研究还揭示了该脱氟剂的脱氟机理及其具有操作简单、易再生、能重复使用和不产生二次污染的特点。展开更多
文摘A novel aliphatic sulfonie acid ion exchange resin was prepared from ethylenediamined polystyrene(PS-acyl-EDA),2-acrylamido-2-methylproanesulfonic acid(AMPS)by Michael reaction.This kind of resin has a longer chain than conventional sulphonic polystyrene resin,that is,the former is easier to react with other compound.The effect of the reaction time,reaction temperature,catalyst amount,reagent amount and the charge ration on reaction result were discussed.Under the optimum condition,the maximum loading of the sulfonie acid ion exchange resin could be up to 1.15 mmol·g-1 resin.The product was characterized with FT-IR.The filling material of chromatographic column could be prepared by this method.
文摘以2-丙烯酰胺-2-甲基丙磺酸(AMPS)为单体、CuCl/N,N,N′,N′-四甲基乙二胺(TMEDA)为催化体系,氯乙酰化聚苯乙烯微球(PS-acyl-Cl)为大分子引发剂,经原子转移自由基聚合反应(ATRP),于微球表面接枝聚脂肪族磺酸(PAMPS)链段获得脂肪族磺酸基强酸性阳离子交换树脂(PS-g-PAMPS)。考察了反应温度、溶剂体系、pH值、催化剂、反应时间等条件对接枝反应的影响,在优化的反应条件下,使用氯乙酰基担载量为3.82 mmol g 1的PS-acyl-Cl,10 h可获得担载量为1.99 mmol g 1的PS-g-PAMPS。产物经过红外,元素分析表征。该PS-g-PAMPS较传统的磺酸基树脂有较长的手臂长度,位阻小,易于和其它物质反应,TG分析显示具有很好的热稳定性。
文摘研究了732型改性树脂脱氟剂的制备方法和离子交换方式、酸洗、铁交换量,以及再生和其他共存离子等对脱氟剂饱和吸附量的影响,同时探讨了732型改性树脂脱氟剂可能的脱氟机理。结果表明,采用酸洗和动态交换方式可显著提高该脱氟剂的脱氟效果;共存离子和再生对该脱氟剂的脱氟效果无明显影响,树脂的最佳载铁量为69.39 m g/g,最大饱和吸附量为12.36 m g/g。研究还揭示了该脱氟剂的脱氟机理及其具有操作简单、易再生、能重复使用和不产生二次污染的特点。
