| 查看: 1248 | 回复: 2 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
[交流]
请虫友们帮忙翻译一段话，万分感谢！
|
|||
| 以不同长度烷基链的叔胺、一缩二乙二醇、三溴化磷为原料，异丙醇为溶剂，通过溴代反应和季铵化反应，合成了Gemini型阳离子表面活性剂，反应产物用混合溶剂乙醇/乙酸乙酯重结晶后，用IR和1HNMR对其结构进行了表征。采用溴酚蓝为指示剂，三氯甲烷为分散相的两相滴定法对其含量进行了测定，所测的表面活性剂的活性物含量均超过了95%，该种方法迅速、简洁，克服了此前文献采用的方法所需标定阴离子表面活性剂标液的烦琐，节省了时间，也提高了准确度。已合成的较高纯度的Gemini型表面活性剂为胶束增溶、相行为等基础理论研究提供了重要的保障。 |
回复此楼» 猜你喜欢
今天基金会出结果吗？20260819
已经有8人回复
-
欢迎发来filecode的Mz6后的代码验证其规律
已经有115人回复
-
filecode，4个jtjc了
已经有8人回复
-
2027广东省杰青
已经有10人回复
-
朋友圈看到的
已经有8人回复
-
时间戳变了，能看出什么问题？
已经有14人回复
-
咱们一起用铁证分析2026国家社科基金中标与否
已经有30人回复
-
今天放榜吗？
已经有11人回复
-
快农历七夕节了，轻松一下，男人悄悄话，女施主请不要进来。
已经有7人回复
-
什么时候开奖？
已经有6人回复
» 抢金币啦！回帖就可以得到:
-
散金祈福
+3/1167
-
每年这时候我都再仔细读一遍《范进中举》
+1/587
-
五大联赛看好哪支球队
+5/330
-
散金求好运
+1/288
-
2026年财务管理、经济与信息技术国际会议 (FMEIT 2026)
+1/276
-
一点琐碎的家务事，却非常困扰我，让我内耗
+2/108
-
散金币祈福
+1/93
-
山东征女友，坐标济南
+1/91
-
上海交通大学张航课题组招聘博士后（电化学能量存储与转换）
+1/79
-
坐标北京诚征男友
+1/66
-
5年了，散金祈愿面上得中，愿望成真再散十倍
+1/31
-
出全新蔡司 Plan?APOCHROMAT 20×/0.8 平场复消色差物镜
+1/4
-
中国科学院生态环境研究中心环境工程相关方向招收保送硕士和联合培养博士和硕士研究生
+1/4
-
南京医科大学-冯璋课题组-招收2027级生化与分子生物学专业博士和硕士研究生
+1/3
-
27推免-广州医科大学封红亮教授招收精神医学应用心理学推免生
+1/3
-
清华大学环境课题组招聘环境工作专业客座生研究生2-3名（应用导向）
+1/3
-
代谢性疾病机制与药效评价的多维分析方案
+1/2
-
河海大学海洋环境污染与生态毒理学研究组招收2027级硕士生 及博士研究生
+1/2
-
北理工集成电路杰青团队 | 诚招科助理
+1/2
-
北理工集成电路杰青团队 | 诚招科助理
+1/2
nirenjie0627(金币+30, 翻译EPI+1):谢谢，各分一半吧！ 2010-12-05 19:57:32
|
这样子：） The Gemini cationic surfactant was composed from the bromination and quaternization of the raw solution, which was obtained by dissolving diethylene glycol, phosphorus tribromide and tertiary amine in isopropanol solvent. Structure characterization of the reaction product, recrystaled from ethanol-ethyl acetate mixture, was carried out through IR and1 HNMR. The content was determined to be more than 95% by means of diphasictitration -with bromophenol blue as the indicator and chloroform as the dispersed phase- which, is a more trouble-saving method than those demanding demarcation of anionicsurfaceactiveagent standard solution in references, and also,more efficient and accurate. The as-composed high-purity Gemini cationic surfactant guarantees the reliability of subsequent theoretical research of solubilization and phase behavior. |
2楼2010-12-05 02:16:19
nirenjie0627(金币+30):谢谢，各分一半吧！ 2010-12-05 19:58:21
| The Gemini cationic surfactant was synthesized though the method of bromination and quaternization, using diethylene glycol, phosphorus tribromide, tertiary amine with different lengths of alkyl chains as raw materals and isopropanol as the solvent. The re-crystalizated product from ethanol-ethyl acetate mixture, was characterizated by IR and1 HNMR. The content of surfactant was determined with diphasictitration - bromophenol blue as the indicator, chloroform as the dispersed phase, and the purity of the surfactant product was more than 95%. This method is a time-saving, more efficient and accurate, as compared with the previous method from the reference. Besides, the demarcating of anionicsurfaceactiveagent standard solution in the reviously determined precedure was cancelled. The as-synthesized Gemini cationic surfactant with high purity is benefical to the theoretical research in solubilization and phase behavior. |
3楼2010-12-05 02:51:50
