氧化还原功能纤维的研究 Ⅷ．含正丙胺基吸附剂与Au~（3＋）的氧化还原反应机理

通过元素分析、红外光谱分析、光电子能谱分析以及扫描电子显微镜分析等手段，证实含正丙胺基吸附剂与Ａｕ３＋的氧化还原反应过程中，氮原子邻近的羟基碳或Ｃ－Ｈ键被氧化，而氮原子并未参与氧化还原反应；吸附态Ａｕ（３＋）最终部分被还原成单质金；在非水介质中吸附在吸附剂上的金聚集成颗粒状。     

Chemical Effects of Radiation Emitted from 10B(n, γ)7Li Reaction on Mixture of n-Propylamine and n-Propanol

The long term variation of the mean dose due to natural radiation in Japan received by an individual person was investigated. The mean exposure rate in each prefecture obtained by in-situ measurements was adopted as a basis of the radiation level. Population data were taken from both the resident registration and the census taking into account the essential difference of their meanings. It was revealed that the per capita dose due to outdoor natural radiaiton in Japan has been decreasing in the last approximate 30 yr. It will be due to the population movement from countrysides towards urban areas. That is because countrysides generally consist of stable mountainlands where granitic rocks distribute though urban areas generally consist of alluvial plains where volcanic ash or humus dominates. Although the contribution of low radiation level (below 9.0μR/h) areas to the nation-wide collective dose still remains under 50%, its relative importance has certainly been increasing in the last three decades. It is expected that human population will be the dominating factor which eventually controls the mean dose due to natural radiation in Japan.     

胺型离子液体催化合成乙酸己酯

合成了硝酸正丁胺（N_4NO_3）、醋酸正丁胺（N_4AC）、醋酸正丙胺（N_3AC）和醋酸乙胺（N_2AC）4种胺型离子液体,采用~1HNMR对其结构进行了表征。以上述胺型离子液体为催化剂,冰醋酸和正己醇为原料,环己烷为带水剂,通过酯化反应制备了乙酸己酯。考察了催化剂种类、反应温度和反应时间等因素对乙酸己酯酯化率的影响,优化了反应工艺。最佳反应条件为：15mL环己烷为带水剂,n（冰醋酸）：n（正己醇）：n（N_4NO_3）=1：1.2：0.1,反应温度为95℃,反应时间为4.5h,乙酸己酯的酯化率可达90.52%。     

丙胺溶液水热液化海藻残渣及产物生物油分析

使用丙胺溶液对裙带菜孢子叶残渣进行水热液化,分析了水热液化后生物油、水溶性物质和固体残渣的成分。在丙胺浓度1.5 mol·L^-1、反应温度240℃、料液比1：10的条件下得到生物油的最大产率为39.81%（质量）。生物油通过GC-MS和FT-IR进行分析,结果表明成分包含醇类、烷类、酯类、酸类、酚类和酰胺类等,并存在C=C、C=O、O-H等化合键。水溶性物质通过HPLC和GC-MS进行分析,结果表明主要产物为酸类物质。固体残渣通过XRD进行分析,结果表明水热液化后纤维素的结晶度降低。最后对丙胺进行回收,在温度100℃条件下回收率达到92.56%。     

氧化还原功能纤维的研究──Ⅶ．含正丙胺基吸附剂的制备及其对Au~（3＋）的吸附性能

以氯甲基化纤维、聚乙烯醇（ＰＶＡ）接枝甲基丙烯酸缩水甘油酯（ＧＭＡ）_一缩二乙二醇丙烯酸双酯（ＤＧＡ）纤维：氯球三种反应性基体，合成了含氮量分别为２．３４，２．９４，１．６１ｍｍｏｌ／ｇ的含正丙胺基吸附剂。结果表明：该类吸附剂在高酸度（ｐＨ＜１．５）及低酸度（ｐＨ＞３．５）对Ａｕ~（３＋）都有较高的吸附量，而在ｐＨ１．５～３．０的吸附量较小甚至为零；且该类吸附剂在低酸度（ｐＨ＞２．５）对Ａｕ~（３＋）有还原作用，随溶液离子强度升高，吸附剂对Ａｕ~（３＋）的吸附量下降。吸附动力学实验结果表明：含正丙胺基吸附剂在ｐＨ４．０对Ａｕ~（３＋）的吸附速度很慢，７２ｈ后仍未达到饱和吸附。在扫描电子显微镜下观察到吸附态金聚集成粒状。