合成了一种新型感光性单体丙烯酸(4 N,N 二甲氨基肉桂酰氧乙基)酯(DMACEA)及其与丙烯酸的共聚物P(DMACEA co AA).用紫外吸收和荧光光谱研究了聚合物溶液的光敏感性,用傅立叶红外光谱研究了聚合物成膜后的光交联性及其过程.结果表明:DMA...合成了一种新型感光性单体丙烯酸(4 N,N 二甲氨基肉桂酰氧乙基)酯(DMACEA)及其与丙烯酸的共聚物P(DMACEA co AA).用紫外吸收和荧光光谱研究了聚合物溶液的光敏感性,用傅立叶红外光谱研究了聚合物成膜后的光交联性及其过程.结果表明:DMACEA具有较好的光敏性,P(DMACEA co AA)具有较好光交联性,交联膜水溶胀和透光性也较好.展开更多
The extraction behavior of N,N-diethyl-N,N-dibenzenyl-urea（DEDBU）and N,N-dimethyl-N,N-dibenzenyl-urea（DMDBU）to uranium（VI）and thorium（IV）from nitric acid solution was studied by using xylene or chloroform as d...The extraction behavior of N,N-diethyl-N,N-dibenzenyl-urea（DEDBU）and N,N-dimethyl-N,N-dibenzenyl-urea（DMDBU）to uranium（VI）and thorium（IV）from nitric acid solution was studied by using xylene or chloroform as diluent.The effect of aqueous HNO3 concentration,extractant concentration,salting-out agent concentration and aqueous UO2+2/Th4+concentration on extraction distribution ratio of U（VI）and Th（IV）was determined.The results show that the extraction behavior of the extractants DEDBU and DMDBU to U（VI）is similar to that of TBP,the solvation numbers both are two.Under the experimental condition,the extractants DEDBU and DMDBU do not show the extraction behatvior to Th（IV）.This means that the estractants may have potential application to separate U（VI）and Th（IV）.展开更多
文摘合成了一种新型感光性单体丙烯酸(4 N,N 二甲氨基肉桂酰氧乙基)酯(DMACEA)及其与丙烯酸的共聚物P(DMACEA co AA).用紫外吸收和荧光光谱研究了聚合物溶液的光敏感性,用傅立叶红外光谱研究了聚合物成膜后的光交联性及其过程.结果表明:DMACEA具有较好的光敏性,P(DMACEA co AA)具有较好光交联性,交联膜水溶胀和透光性也较好.
文摘The extraction behavior of N,N-diethyl-N,N-dibenzenyl-urea（DEDBU）and N,N-dimethyl-N,N-dibenzenyl-urea（DMDBU）to uranium（VI）and thorium（IV）from nitric acid solution was studied by using xylene or chloroform as diluent.The effect of aqueous HNO3 concentration,extractant concentration,salting-out agent concentration and aqueous UO2+2/Th4+concentration on extraction distribution ratio of U（VI）and Th（IV）was determined.The results show that the extraction behavior of the extractants DEDBU and DMDBU to U（VI）is similar to that of TBP,the solvation numbers both are two.Under the experimental condition,the extractants DEDBU and DMDBU do not show the extraction behatvior to Th（IV）.This means that the estractants may have potential application to separate U（VI）and Th（IV）.
